IMPORTANT NOTE: All numbers can be changed. The concept is key, though.

Advice, comment and constructive criticism is always accepted.

1 Growth 18 1 Growth 18
Health 605 (+95) 2220 Attack damage 57 (+3.6) 118.2
Health regen. 9.5 (+0.9) 24.8 Attack speed 0.625 (+3.4%) 58.4%
No Resource   Armor 28 (+3.9) 94.3
    Magic resist. 32.1 (+1.25) 53.4
Attack range 125 Mov. speed 330

Oonoki, the Heavy Wrestler is a custom champion in League of Legends.

GreenMoriyama here, with a new champion of Ionian origins. Being my first original champion that is not taken from TakaHann's Journal of Custom Champions, I wish to introduce to you also my first concept of a tank-primary champion, Oonoki. Inspired by random thoughts and the fact that Ionia doesn't have a champion that represents a heavy-weight/tanky martial-art (they have a ShenSquare tank, but he isn't heavy-weight, is he?), a sumo champion came to mind. Originally planned to be a joke champion concept earlier this year, I took time into making him a more serious concept when I missed my chance to post him (mostly due to the popularity of Izo and my busy time schedule around that time). He is one of two champions concept made from this intended April Fool's joke, with the other to come later on.

Now, behold the heavy-weight wrestler, hailing from the mountains of Ionia. With his power-filled slaps and robustly fat blubber (?), GreenMoriyama Oonoki Profile Square Oonoki is just as steadfast as the mountainside he came from. -Green Moriyama


Heavy Fat
GreenMoriyama Oonoki Passive

Any movement speed bonuses Oonoki receives are reduced by 40 - 25 (based on level)%. He is also 25% innately resistant to enemy Airborne icon airborne effects.

Thick Fat: For every 80 - 50 (based on level) bonus health, Oonoki gains 1 base armor and 0.25% additional resistance to enemy Airborne icon airborne effects.

Resistance to Airborne icon airborne effects caps at 50%.

Ability Details
Heavy Fat is a self-targeted buff.

Additional Information:

  • Airborne effects are affected differently by Heavy Fat.
  • Oonoki reaches maximum resistance at 8000 - 5000 (based on level) bonus health.
    • At this point, he would also have gained 100 base armor. Oonoki can still gain more armor from Heavy Fat; he will just have his airborne resistance gated.
Forceful Palm
RANGE: 150 / 250 / 150 / 450
COOLDOWN: 14 / 13 / 12 / 11 / 10
GreenMoriyama Oonoki Q

Passive: Oonoki’s basic attacks applies stacks of GreenMoriyama Oonoki Q Forceful Palm, stacking up to three times for 5 seconds. At the third stack, Oonoki’s basic attacks begins to push back the target. This is not considered as a Airborne icon knock back.

Whenever Oonoki knocks back an enemy into terrain, the enemy is stunned for a few seconds. This effect cannot occur on the same target more than once every few seconds.

Stun Duration: 1.5 / 1.75 / 2 / 2.25 / 2.5

On-Target Cooldown: 8 / 7.5 / 7 / 6.5 / 6

Active: After a brief channel, Oonoki pushes with his entire body, inflicting physical damage and Airborne icon knocking back all enemies in a given direction to a fixed distance away from Oonoki. This also applies on-hit effects on enemy champions.

  • Physical Damage: 40 / 70 / 100 / 130 / 160 (+ 30% bonus AD) (+ 9 / 10.5 / 12 / 13.5 / 15% of Oonoki’s current health)

Enemies in the way of this knock back are also Airborne icon knocked back for reduced damage.

  • Reduced Physical Damage: 25 / 55 / 85 / 115 / 145 (+ 20% bonus AD) (+ 4 / 5.5 / 7 / 8.5 / 10% of Oonoki’s current health)
Ability Details
Forceful Palm’s Passive is an on-hit stacking buff that displaces enemies at full stack while not being considered as an actual crowd control effect.

Forceful Palm’s Active is a physical damage knock back skill shot that can apply on-hit effects on enemy champions.

  • Forceful Palm does not apply spell effects.
  • Banshee's Veil item.png Spell shields will block the passive's stack application and the active's knock back.

Additional Information:

  • The pseudo-knock back on the passive is also in effect when the third stack is applied, not after it is applied.
  • Enemy champions who are in the way will not have on-hit effects applied to them.
Ritual Salt
RANGE: 425 / 50º
COOLDOWN: 20 / 18 / 16 / 14 / 12
GreenMoriyama Oonoki W

Active: Oonoki tosses ritual salt in a cone, dealing magic damage to enemies and marking them with GreenMoriyama Oonoki W Ritual Salt for up to 8 seconds.

  • Magic Damage: 30 / 50 / 70 / 90 / 110 (+ 45% AP)

As long as one enemy is marked with Ritual Salt, Oonoki receives reduced damage from enemies without the mark. Damage reduction is based on how many enemies are marked, being more effective if enemy champions and large monsters are marked.

Damage reduction is capped at 10% from minions and small monsters, and at 35% total.

  • Normal Damage Reduction: 2%
  • Enhanced Damage Reduction: 4 / 5 / 6 / 7 / 8%

Whenever an enemy marked by Ritual Salt dies, Uo'musou Beat Down’s cooldown is reduced by 1 second.

Ability Details
Ritual Salt is a conic area of effect that deals magic damage and applies a unique debuff mark on enemies.

Additional Information:

  • Towers ignore the damage resistance.
Deceptive Clap
RANGE: 250
COOLDOWN: 18 / 17 / 16 / 15 / 14

Passive: Attacking with basic attacks enemies marked by GreenMoriyama Oonoki Q Forceful Palm reduce Deceptive Clap’s cooldown by 1 second.

Active: Oonoki claps his hand towards the target direction, causing all enemies affected to turn towards Oonoki for a brief moment. Enemies already facing Oonoki will also be inflicted with a Slow icon slow that decays over 2.5 seconds.

  • Slow: 50 / 55 / 60 / 65 / 70%

Deceptive Clap resets Oonoki’s autoattack timer.

Ability Details
Deceptive Clap is a skill shot that turns enemies towards him and can possibly slow them.
Uo'muso Beat Down
RANGE: 400 / 550
COOLDOWN: 110 / 100 / 90

Requires an enemy champion to be marked with GreenMoriyama Oonoki W Ritual Salt.

Active: Oonoki charges at the target enemy champion, applying all stacks of GreenMoriyama Oonoki Q Forceful Palm as he Suppression icon slaps them down over 1 second to deal physical damage and Grounded icon ground them for 5 seconds.

  • Physical Damage: 200 / 275 / 350 (+ 100% AD) (+ 15 / 20 / 25% of Oonoki's max Health)

Upon initiation, Oonoki summons a ring around the location, lasting for 10 seconds. If the target leaves the ring or dies before the end of the duration, Oonoki is healed over 5 seconds. The ring will disappear if Oonoki leaves the ring or dies, or when the heal is triggered.

  • Heal per second: 8 / 10 / 12% of Oonoki's missing Health

If the target enemy is facing Oonoki when he initiates this ability on them, the Suppression icon suppression duration is increased to 1.5 seconds, while all damage dealt by Oonoki to the target in the ring is increased by a percentage, including the initiation physical damage.

  • Bonus Damage: 15 / 20 / 25%
Ability Details
Uo'muso Beat Down is a unit-targeted dash that deals physical damage and grounds the enemy.

Additional Information:

  • For the duration of the suppression, Oonoki channels and is unable to take actions or voluntarily stop it prematurely.
  • The healing takes into consideration Oonoki's current missing health each second, becoming less effective each second.




A new martial art arises in Ionia that takes a step aside from the powerful weapons and fists of martial arts, focusing on a more robust art of shoving and weight-throwing. Its name? Uo'muso.

Conceived by a man who had trained from a young age upon the mountainside, Uo'muso is a wrestling art that focuses on forward momentum and maintaining one's balance. Instead of being shifty as a ninja or skilled with the blade as a sword-master, practitioners of Uo'muso believe the steady mountain can bear the blows.

Oonoki, the man who had introduced the fighting art to the Ionians, is a joyous man with an unending liking for noodles. Taking his weight as an advantage, he created the art of Uo'muso after much meditation and training. In the end though, he does not want the art to be fought over between disciples but be witnessed by many as an enjoyable art. To him, the open palms Uo'muso provides breath a cheerful life to those who practice its art.

"May everyone enjoy a bout that involves my Uo'muso fighting style! That's all I wish for."

Expanded BackstoryEdit

To train in his art of Uo'muso, Oonoki has gone through countless kinds of training, from swimming up harsh rivers to holding a large boulder on his back for an entire week.

One day, Oonoki challenged himself to bring down a large Zunan tree with only the strike of his palm. Some would laugh, and Oonoki did too. But he laughed because he believed in himself that his positive energy will bring the tree down. Thus, after having twenty hardy bowls of noodles, Oonoki began slapping the tree's trunk, one strike at a time.

On the first few days, some of the nearby villagers came to watch Oonoki pointlessly strike the tree. But their attention dwindled as less and less people visited the wrestler over the next week.

A month passed, now with no one watching at Oonoki's progress. The last person who witnessed him a week ago saw that he had made some imprints of his hand, but nothing more.

A few more months passed. One day, a young girl pranced along on her way to collect flowers. She saw the great Zunan tree nearby and wondered about Oonoki's progress. Thus she walked over, only to find that Oonoki was resting on his back. Yet, the tree hasn't been felled, so the girl wondered if Oonoki gave up on his endeavor. Yet, she knew that the great Oonoki was not a man who would ever give up, so she approached the tree. And as she touched the tree where Oonoki had left his mark, the tree began to creak. After all of his slapping, the tree had given way. But now, it was about to fall onto the girl. All she could do was cover her head in horror of her last moments in life.

Yet, the tree did not fall on top of her. As she looked up from her arms, she was gazing at the back of Oonoki. Protecting the girl, Oonoki now shouldered the humongous tree. After placing the fallen tree aside, he was thanked the girl and later congratulated by the villagers for his great feat.

"Just like how a thousand water drops can make a hole in a rock, a thousand determined slaps can fell a tall tree."


Upon Selection

  • "Dosukoi!!"


  • *Grunts*
  • "Come on!"
  • "Be pushed!"
  • "Let's enjoy our time!"
  • "There is more to a fight than strong arms."
  • "Take a stand."
  • "Press. Press!"
  • "When you strike, use your hips too."
  • "Let's have some noodles after the fight."
  • "This is just like when I knead my noodle dough."
  • "Soe!"
  • "Sorye!"
  • "Hari!"
  • "Dos!"
  • "Dosukoi!"


  • "I may be heavy, but I can still move."
  • "Moving to where?"
  • "Is the competition this way?"
  • "I will last as long as I need."
  • "Good exercise. Good exercise..."
  • "Even Uo'muso consists of footwork and movement."
  • "Getting hungry for some noodles."
  • "Hmph!"
  • Grumbles in his Ionian dialect
  • Hums a tune


  • "You might have been through punches and kicks, but how about some mighty slaps?"
  • "I dare you to push me over. Try it. It will not be easy."
  • "Speed and strength will not make due. You also need a bit of weight!"
  • "You may be more agile than me, but my weight will tower over you."

Taunting GragasSquare Gragas

  • "I never have had a hard drink from outside Ionian... so show me. How is like?"
  • "Belly to belly... let's measure up who can carry their weight better."

Taunting BraumSquare Braum

  • "After a good fight, let's talk over some fresh milk... and some noodles. Hah hah."
  • "Which will last longer: your shield... or my belly? Hah hah."
  • "How are snowy mountains like, my friend? Here... it's always beautiful. Hah hah."


  • "I am not fat! I'm just pleasantly... plump."
  • "This here may look like useless fat, but it's actually... not."
  • "This belly here is as firm as it can be! *pause* Or not."
  • "I eat noodles everyday, and this is the result... of it."
  • "They say I need to cut down on the fat... and I may need to agree a bit."


  • "Press, press, press. Press, press, press..."
  • "Press, press, press, press, press, press, press, dosukoi!"

Upon using knocking back an enemy into terrain

  • "Should have been careful of the wall, oh foe."
  • "Oh, did I push too hard? I'm sorry."
  • "Have you head checked after."

Upon using Forceful Palm

  • "All together now!"
  • "In one sweep!"
  • "Push!"
  • "Sorye!"
  • "Hari!"
  • "Dos!"
  • "Dosukoi!"

Upon using Uo'muso Beatdown

  • "Dosukoi!!"
  • "Iwattou!!"
  • "Here comes the Uo'muso beatdown!!"
  • "Come and take a bout!"
  • "Kneading you like I do to noodles!"

Upon using...

Animation ConceptEdit

Attack Animation

  • Slaps enemy with a jab.

Attack Animation to Structure

  • Tackles the structure, shoulder first
  • Slaps the structure with both hands

Critical Attack Animation

  • Slaps enemy with a hook.
  • Shoves enemy with both hands.

Idle Animation

  • Takes a crouching sumo pose.
  • Adjusts his belt.
  • Relaxes, taking a look at the surrounding scenery.
  • Lifts one leg a bit off the ground, only to slowly lower it into a soft stomp. Does the same with the other leg.

Taunt Animation

  • Takes a semi-crouched stance, proceeding to raising one leg slowly up high and stomping the ground. Does the same with the other leg.
  • Takes a semi-crouched stance, holding both arms out to the side. After raising them above himself, he sweeps both arms in front of himself before going back to standing.

Joke Animation

  • Stands proud before slapping his own belly, resulting in his belly jiggling. After a few moments of the continuous juggling and witnessing it, Oonoki personally stops it.

Dance Animation

  • Refer to trivia section.

Death Animation

  • Trips backwards, landing on his back.

Laugh Animation

  • Places his hands on his hips to give out a bellow of a laugh, while leaning backwards a bit.

Theoretical Item BuildEdit

Summoner's Rift
Starting Doran's Shield item Health Potion item Warding Totem item
Essential Sunfire Cape item Spirit Visage item
Offensive Frozen Mallet item Sterak's Gage item Titanic Hydra item
Defensive Warmog's Armor item Thornmail item Banshee's Veil item
Consumables Elixir of Iron item Vision Ward item

Skins & TriviaEdit

Skins & Splash-artsEdit

  • Blood Moon Oonoki
  • Taiko Drummer Oonoki
  • Gentleman Oonoki
  • Champion Oonoki
  • Ogre Oonoki


  • Oonoki’s name, if rendered into Japanese, would be “The Giant Tree” (大ノ木), a reference to the tree he had trained upon.
  • Oonoki's character and theme is a homage to sumo wrestling. Each part of his kit and interactions are influenced by aspects of sumo.
    • Oonoki's looks (thus the images used) are influenced by Edmond Honda from the popular fighting series, Street Fighter, along with other sumo-based video game characters.
    • For abilities:
      • Heavy Fat refers to the weight/fat sumo wrestlers tend to carry in order to compete more effectively by having more inertia/momentum.
        • To note though, being simply heavier does not essentially guarantee a better chance at winning as some moves are more effective when used on larger/heavier opponents. It's also worthwhile to note that there have been successful sumo wrestlers who were not the heaviest in weight, one example being Wakanohana who was known as the lightest Yokozuna.
      • Forceful Palm is reference to the common sumo move "harite" (張り手; sticking hand) where a wrestler successively slaps his opponent quickly with open palms in a forward motion in order to push their enemies back.
      • Ritual Salt refers to the process of cleansing the ring before a bout by tossing ritual salt onto it.
      • Deceptive Clap is loosely based on a feint unconventionally used in sumo wrestling called "The Cat-Deceiver" (猫騙し; nekodamashi). Mostly used at the start of a bout, the wrestler claps in front of their opponent's face in an attempt to cause them to temporarily flinch with both action and sound.
      • Uo'muso Beat Down is based on the "Slap Down" (叩き込み; hatakikomi), one of the more common "winning moves" (決まり手; kimari-te) in sumo wrestling.
        • The ring it creates is based on the sumo ring, while the rule "if the enemy leaves the ring" is one of the most common victory methods: winning by forcing their opponent outside the ring.
    • Oonoki’s taunt action is based upon the shiko (四股), a ritualistic stomping exercise sumo wrestlers perform right before a match.
      • Although they stomp with incredible force after raising their legs as high as possible, to prevent hurting their knees, they are careful in not bringing down their leg at full force.
      • Example.
    • Oonoki's dance is a reference to a Japanese commercial that advertises the Japanese snack Pretz with a sumo theme to it. Watch it here.
  • The name of Oonoki's fighting style, "Uo'muso," is "osumou" (お相撲; the formal way of saying "sumo") spelled backwards.
  • Oonoki's name is not a reference to other fictional characters with the same name, such as Oonoki from the ninja-action series Naruto.As per Oonoki's creator, GreenMoriyama
  • Oonoki's joke is a reference to a occurence from Kung Fu Panda. See here.


  • Just like other Ionian champions, such as YasuoSquare Yasuo, Oonoki speaks a dialect of ancient Ionian that sounds similar to authentic, although part-flawed, Japanese.

Skins triviaEdit

Blood Moon Oonoki

Taiko Drummer Oonoki

  • Unlike his other skins where he remains unarmed, Oonoki wields a set of Taiko drumming sticks called bachi (バチ).
    • In response, most of Oonoki's attacks feature a taiko-drum sound when striking an enemy.
  • His dance is replaced with a drumming performance.

Gentleman Oonoki

Championship Oonoki

  • This skin was made in celebration of the 20XX World Championship.
  • Oonoki wears a special rope (綱; tsuna) that is tied around a sumo wrestler's waist to signify that they hold the highest rank in sumo: the Yokozuna.
  • He shares this theme with KalistaSquare Kalista, RivenSquare Riven, ThreshSquare Thresh and ShyvanaSquare Shyvana.

Ogre Oonoki

  • This skin is a reference to the Japanese oni, a youkai popularly found in Japanese literature and folklore. They are commonly depicted as hideous ogre-looking creatures with unnatural skin colors (most frequently blue or red).
  • This skin has some reference to Akuma, a major antagonist in the Street Fighter series who is known as "Great Demon" (豪鬼; gouki; lit. "Great Demon" or "Great Ogre").


  • During his dance, Oonoki sings to the beat of the commercial the dance is based off of.
  • Oonoki's selection quote is directly taken from one of the common exclamations used in sumo wrestling, "dosukoi" (ドスコイ). It is usually used at the start of a bout, along with being a phrase similar to "fight on."
  • "I am not fat! I'm just pleasantly... plump." is a reference to Chouji Akimichi, a character from the ninja action manga series Naruto who says this line often.


Login ThemeEdit

GreenMoriyama Oonoki Cherry Blossoms In Winter
(fuyu no sakura; lit. "Cherry Blossom in Winter") - Yoshida Brothers (吉田兄弟; yoshida kyoudai)

Patch HistoryEdit

January 17, 2016: Patch V1.02

  • Format clean-up.
  • Trivia improved or added.
  • Quotes added.
  • Added theoretical item build.
  • Added login theme track to replace the link.
  • GreenMoriyama Oonoki Q Forceful Palm (Q)
    • Reduced physical damage's base damage reduced to 25 / 55 / 85 / 115 / 145 from 30 / 60 / 90 / 120 / 150.
  • GreenMoriyama Oonoki W Ritual Salt (W)
    • Magic damage ability power ratio increased to 45% from 12%.
    • Damage reduction from units that are not a champion or large monster now has a cap of 10% total. Total possible bonus cap is still 35%.
    • Cooldown reduced to 20 / 18 / 16 / 14 / 12 from 23 / 21 / 19 / 17 / 15.
  • Deceptive Clap (E)
    • Passive description changed to have more kit relevance than before, referring to Forceful Palm.
    • Slow increased to 50 / 55 / 60 / 65 / 70% from 40 / 45 / 50 / 55 / 60%.
    • Cast range increased to 250 from 200.
    • Cooldown increased to 18 / 17 / 16 / 15 / 14 from 15 / 14 / 13 / 12 / 11.
  • Uo'muso Beat Down (R)
    • Initiation now applies full stacks of Forceful Palm
    • Description clarifies that the ring created by this ability disappears when either Oonoki leaves it under any condition, or dies, or when the heal is triggered.
    • Heal per second increased to 8 / 10 / 12% of Oonoki's Missing Health from 8 / 9 / 10%.
    • Added effect where if the target is facing Oonoki, they will be suppressed for an extra 0.5 seconds and will receive 15 / 20 / 25% bonus damage from him, including the initiation damage, while in the ring.
    • Cast ranged increased to 400 from 350.
      • Ring radius increased to 550 from 500.
    • Tootip now clarifies the fact that Oonoki channels during the suppression.

July 28, 2016: Patch V1.01

  • Additional title added.
  • Some quotes added.
  • GreenMoriyama Oonoki Passive Heavy Fat (Innate)
    • General clarifications made in regards to how allied CC effects affect Oonoki.
  • GreenMoriyama Oonoki Q Forceful Palm (Q)
    • Active range increased to 250 from 225.
  • GreenMoriyama Oonoki W Ritual Salt (W)
    • Magic damage ability power ratio reduced to 12% from 15%.
    • Cast range increased to 425 from 400.
    • Cooldown reduction for Uo'muso Beatdown now applies to when any unit with Ritual Salt is killed than only when Oonoki kills the unit.
  • Deceptive Clap (E)
    • CC tip clarifications made for the turn-around and the slow.
    • Cast range increased to 200 from 175.
  • Uo'muso Beat Down (R)
    • CC tip clarifications made for suppression and grounding.
    • Ring radius reduced to 500 from 600.

June 13, 2016: Patch V1.00

  • Base statistics changed.
    • Armor increased to 28 from 26.
  • Minor revisions to information, including grammar corrections.
  • Champion bio added
  • GreenMoriyama Oonoki Passive Heavy Fat (Innate)
    • Oonoki now receives less bonus movement speed from any source.
    • Heavy Fat now also offers a base amount of airborne resistance.
      • Airborne resistance from bonus health reduced to 0.25% from 0.4%.
      • Bonus health scaling reduced to 80 - 50 (based on level) from 100 - 70 (based on level).
    • Now describes in ability tooltip on the mechanics of the armor and resistance gain through bonus health, including showing the statistics of what is necessary to reach the resistance cap.
  • GreenMoriyama Oonoki Q Forceful Palm (Q)
    • Passive revised, now applying marks instead of knocking back enemies with each basic attack.
      • At full stack (3), enemies are knocked back by Oonoki’s basic attacks.
      • Knock back range increased to 150 from 20 / 30 / 40 / 50 / 60.
    • Passive now also causes Oonoki’s knock backs to stun enemies if they collide into terrain.
    • Active revised into a direction targeted skill shot from an auto attack enhancer.
      • Enemies are dealt physical damage and knocked back a fixed distance away from Oonoki.
        • Applies on-hit effects on enemy champions.
      • Enemies caught are also damaged for reduced physical damage and knocked back.
  • GreenMoriyama Oonoki W Ritual Salt (W)
    • Damage cap reduced to 35% from 50%.
    • Cone width increased to 50º from 40º.
  • Deceptive Clap (E)
    • Revised into a skill shot instead of a point-click ability.
    • Causes all enemies to turn towards Oonoki instead of stunning a single enemy.
      • Enemies who were already facing Oonoki are now also inflicted with a decaying slow.
    • Range increased to 175 from 150.
  • Uo'muso Beat Down (R)
    • Physical damage's health scaling changed to 15 / 20 / 25% of Oonoki's Max Health from20 / 25 / 30% of Oonoki's Current Health.
    • Heal per second changed to 8 / 9 / 10% of Oonoki's Missing Health from 4 / 5 / 6% of Oonoki's Maximum Health.

April 15, 2016: Added

  • GreenMoriyama Oonoki Passive Heavy Fat (Innate)
    • Oonoki's fat makes him steadfast like the mountains, allowing his bonus health to provide a layer more of hardiness and a resistance to being moved.
  • GreenMoriyama Oonoki Q Forceful Palm (Q)
    • Oonoki's slaps his enemies with force, pushing them. He is able to make a couple quick yet powerful slaps to knock them back even more.
  • GreenMoriyama Oonoki W Ritual Salt (W)
    • Oonoki tosses some ritual salt, claiming who is his opponent and who is not. To those who aren't, their attacks are less effective to Oonoki.
  • Deceptive Clap (E)
    • Oonoki claps right in front of his enemy's eyes, confusing them with both sight and sound.
  • Uo'muso Beat Down (R)
    • Oonoki charges his foe, beat them down into the ground. He then establishes a Uo'muso ring, where his victory grants him vitality.






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