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Lore
Armed with wit, charm, and his signature transforming hammer, Jayce lives to protect his native Piltover. Long before his nation called him a hero, however, he was a promising young inventor. When Piltover commissioned him to study a rare arcane crystal, Jayce discovered it could be used as a vast energy source. Eager to make a name for himself, he began developing a device to harness its power. Word of the crystal's potential reached beyond the borders of Piltover. 
Viktor, the machine-augmented scientist from Zaun, brought Jayce an offer – together, they could use the crystal to advance his "glorious evolution," a vision of humanity fused with technology. Jayce refused, but the Zaunite had no intention of leaving empty handed. He effortlessly blasted Jayce aside and seized the crystal, incinerating the lab's meager security force as he left for Zaun. Jayce implored the Piltover government to respond, but the officials refused to support an act of aggression. He decided to act alone, realizing that if no one struck back, Piltover would never be safe.
Jayce returned to the lab to prepare for his attack. After intense research, development, and hands-on testing, he emerged with his crowning achievement –the Mercury Hammer. Weapon in hand, Jayce marched to Zaun and began his one-man assault. Viktor's acolytes rushed to stop him, but Jayce smashed them aside, fighting his way into the heart of the lab. Inside, Jayce saw the horrifying brilliance of Viktor's creations, all powered by the energy of the arcane crystal. He realized that his only option was to destroy the power source, but Viktor stood in his way. Though their clash left both scientists heavily wounded, Jayce managed a desperate strike at the crystal. He shattered it and escaped as Viktor's machines erupted in flames. When he returned home, exhausted but victorious, the citizens of Piltover hailed Jayce as a hero. He reveled in the adoration, but knew that his actions had drawn the attention of dangerous enemies. Now devoted to the defense of his people, Jayce is Piltover's best hope for a bright future.
| “ | "Trust me: if we're smart, Piltover can stand strong against any threat. Hey, I'm living proof." |
| — Jayce | |
 |
Quotes
- Upon selection
- Attacking
- Movement
- Joke
Jayce prepares to fire his cannon, but shoots out confetti instead.
- Taunt
Jayce heroically leaps into the air and lands with force.
- Laugh
- When firing
Shock Blast through 
Acceleration Gate
- When units die from an enhanced Shock Blast
- When casting
To the Skies!
- When casting Transform
- Attacking
- Movement
- Joke
Jayce prepares to fire his cannon, but shoots out confetti instead.
- Taunt
Jayce heroically leaps into the air and lands with force.
- Laugh
- When firing Shock Blast through Acceleration Gate
- When units die from an enhanced Shock Blast
- When casting To the Skies!
- When casting Transform
- Attacking
- Movement
- Joke
Jayce prepares to fire his cannon, but shoots out confetti instead.
- Taunt
Jayce heroically leaps into the air and lands with force.
- Laugh
- When firing Shock Blast through Acceleration Gate
- When units die from an enhanced Shock Blast
- When casting To the Skies!
Development
Jayce was designed by FeralPony and Hephastopheles.
Champion Sneak Peek
By NeeksNaman[2]
Jayce sneak peek
If you've been waiting for the League to acquire a Renaissance man, then your long wait is over. Meet Jayce, the Defender of Tomorrow. In addition to being a class act and charmer, this modern gentleman is one of Piltover's premier scientific geniuses.
This brazen, well-equipped man for all seasons sports hi-tech armor and wields the skull-crushing Mercury Hammer that also transforms into the Mercury Cannon. Whether you want to get up close and personal to punish enemies with a gigantic blunt instrument or shake things up by peppering opponents with energy blasts from a distance, Jayce has the skills it takes to deliver.
Jayce, the Defender of Tomorrow Revealed
By NeeksNaman[3]
If you're ready to add a little versatility to your fighter or ranged carry game, look no further than Jayce, the Defender of Tomorrow. Jayce's transforming weapon allows him to adapt to nearly any situation, making him an extremely versatile champion for whatever role you need filled on the Fields of Justice.
The lynchpin in Jayce's kit is his ultimate. Starting with a free rank at level 1, Jayce can activate his ultimate to transform his weapon into either the short range Mercury Hammer or the long range Mercury Cannon. Each time he transitions he'll receive a bonus effect on his next basic attack that either shreds the target's defensive stats (ranged mode) or deals significantly increased damage (melee mode).
Selecting the right weapon type for your current engagement is the key to playing Jayce effectively. While ranged, Jayce can pepper enemies with ranged attacks, deploying Shock Blast and Hypercharge to wear down opponents while utilizing Acceleration Gate to Keep his team at a safe distance. Having worn an enemy down in this manner, Acceleration Gate can be repurposed to give chase, allowing him to shift his weapon into its hammer form and leap into the fray with To the Skies!
Once he's closed the distance, he can utilize Thundering Blow to pick up a quick kill, while the additional armor from being in melee mode gives him the toughness necessary to either withdraw or continue fighting at close range. However you choose to play Jayce, canny shifting between his weapon modes will make or break your success on the battlefield.
Abilities (Mercury Hammer):
- Hextech Capacitor (Passive): Jayce gains a quick burst of movement speed and ignores unit collision each time Transform is cast.
- To the Skies!: Jayce leaps to an enemy dealing physical damage and slowing enemies.
- Lightning Field:
- Passive: Jayce restores mana per strike.
- Active: Jayce creates a field of lightning damaging nearby enemies for several seconds.
- Thundering Blow: Jayce deals magic damage to an enemy based on their maximum health and knocks them back a short distance.
- Transform: Mercury Cannon (Ultimate): Transforms the Mercury Hammer into the Mercury Cannon gaining new abilities and increased range. The first attack in this form reduces the target's armor and magic resist.
Abilities (Mercury Cannon):
- Shock Blast: Jayce fires an orb of electricity that detonates upon hitting an enemy (or reaching the end of its path) dealing physical damage to all enemies in the area of the explosion.
- Hyper Charge: Jayce gains a burst of energy, increasing attack speed to maximum for several attacks.
- Acceleration Gate: Jayce deploys an Acceleration Gate increasing the movement speed of all allies who pass through it. If Shock Blast is fired through the gate the missile speed, range, and damage will increase.
- Transform: Mercury Hammer): Transforms the Mercury Cannon into the Mercury Hammer gaining new abilities and increasing armor and magic resist. The first attack in this form deals additional magic damage.
Celebrate Valentine's Day with Debonair Jayce
By NeeksNaman[4]
From The Defender of Tomorrow in the Fashion of Today, exclusive to IM:
“The room smells of mahogany and warm brandy, and I can tell by the leopard-skin hearthrug that the man I’ve come to interview is well-accustomed to company. They’re finishing the shoot in the foyer where Jayce, the Defender of Tomorrow, has suited up in the high fashion of today. In the meantime, I have free reign of the illustrious inventor’s sitting-room and I’m staring at the newest model of the world-famous Mercury Cannon-Hammer.
Slim and trim, and as stylish as the room I’m standing in, this iteration of Jayce’s signature weapon has refined lines and looks as clean as Piltover’s finests’ sterilized holding cells – not that I’ve seen them, of course. When we met last night, Jayce told me with his trademark wit about the new effects that issue from the cannon’s powerful blasts.
The door swings open and dapper Jayce strides with the effortless grace of someone who has more awards than bottles of wine despite a cellar the size of an Ionian temple. Dressed to the skies with a white overcoat and charming rose boutonniere, Jayce has picked up a confident swagger and a noticeable change in his voice…”
Dressed to the skies with a white overcoat and classy boutonniere, sleek and stylish Debonair Jayce is ready for Valentine’s Day for 975 RP in the store.
Previous Lore
Armed with wit, charm, and his signature transforming hammer, Jayce lives to protect his native Piltover. He rose to prominence as an inventor, one whose magnetic personality and innovative creations brightened the lives of his nation's people. However, his technological marvels also attracted the attention of Piltover's enemies. Viktor, the machine-augmented scientist from Zaun, staged a deadly raid on Jayce's laboratory, barely impeded by the lab's meager security force. Viktor stole designs for an arcane power converter. Jayce feared that Viktor would create weapons of devastating power with the stolen technology. He implored the Piltover government to respond, but the officials were unwilling to support an act of aggression. Refusing to allow his own inventions to threaten the people of Piltover, Jayce decided to strike back against Viktor himself.
Patch History
V6.6:
-
- Mana cost reduced to 40 at all ranks from 40 / 45 / 50 / 55 / 60 / 65.
- Bonus AD ratio increased to 120% bonus AD from 100% bonus AD.
- Base damage increased to 40 / 80 / 120 / 160 / 200 / 240 from 30 / 70 / 110 / 150 / 190 / 230.
V6.1:
- Transform: Mercury Hammer
- Bug Fix: Bonus magic damage upon transforming would consume against structures without dealing damage if Hyper Charge was active.
- Bug Fix: Bonus magic damage upon transforming would consume against structures without dealing damage if
- Stats
- Base mana increased to 357.2 from 307.2.
- Mana growth reduced to 37 from 40.
- Transform: Mercury Cannon/ Transform: Mercury Hammer
- Fixed a bug where the ability was improving at levels 5 / 10 / 15 instead of 6 / 11 / 16.
- General
- New Effect: Transform: Mercury Cannon / Transform: Mercury Hammer can no longer be ranked and will automatically improve at levels 6, 11 and 16. Values unchanged.
- Each of Jayce's basic abilities now has 6 ranks.
- New Effect:
- To the Skies!
- Base damage changed to 30 / 70 / 110 / 150 / 190 / 230 from 20 / 65 / 110 / 155 / 200.
- Lightning Field
- Base damage changed to 100 / 160 / 220 / 280 / 340 / 400 from 100 / 170 / 240 / 310 / 380.
- Thundering Blow
- Maximum Health ratio changed to (+ 8 / 10.4 / 12.8 / 15.2 / 17.6 / 20% of target's max. health) from (+ 8 / 11 / 14 / 17 / 20% of target's max. health).
- Cooldown changed to 15 / 14 / 13 / 12 / 11 / 10 seconds from 14 / 13 / 12 / 11 / 10.
- Shock Blast
- Base damage changed to 70 / 120 / 170 / 220 / 270 / 320 from 60 / 115 / 170 / 225 / 280.
- Hyper Charge
- Damage modifier changed to 70 / 78 / 86 / 94 / 102 / 110% from 70 / 80 / 90 / 100 / 110%.
- Cooldown changed to 13 / 11.4 / 9.8 / 8.2 / 6.6 / 4 from 13 / 11 / 9 / 7 / 5.
V5.1:
- Hyper Charge
- Damage modifier reduced to 70 / 80 / 90 / 100 / 110% from 70 / 85 / 100 / 115 / 130%.
- Hyper Charge
- Cooldown reduced to 13 / 11 / 9 / 7 / 5 seconds from 14 / 12 / 10 / 8 / 6.
- Cooldown now begins after the attacks have been used, rather than on activation.
V4.5:
- Stats
- Base armor increased to 16.5 from 12.5.
- General
- Transform: Mercury Hammer/ Transform: Mercury Cannon no longer count as a spellcast for the sake of items like Tear of the Goddess, Sheen, etc.
- Shock Blast
- Basic missile speed increased to 1450 from 1350. (Accelerated Shock Blast missile speed remains the same.)
- Acceleration Gate
- Cooldown increased to 16 seconds from 14 / 13 / 12 / 11 / 10.
- Stats
- Base movement speed increased to 335 from 310.
- Thundering Blow
- No longer deals any flat base damage (still deals % max health damage and has a bonus attack damage ratio).
- Fixed: Stun no longer sometimes lasts beyond the knockback duration.
- Acceleration Gate
- Mana cost increased to 50 from 30.
- Thundering Blow
- Mana cost increased to 40 / 50 / 60 / 70 / 80 from 40 at all ranks.
- General
- Improved the responsiveness of his basic attacks, primarily in Hammer stance.
- Fixed: The first basic attack after swapping to Mercury Cannon is now more responsive.
V1.0.0.142: Added
- Hextech Capacitor (Innate)
- Jayce gains a quick burst of movement speed and ignores unit collision each time Transform is cast.
- Hammer Stance
- To the Skies! (Q)
- Jayce leaps to an enemy dealing physical damage and slowing enemies.
- Lightning Field (W)
- Passive: Jayce restores mana each time he strikes with the Mercury Hammer.
- Active: Jayce creates a field of lightning damaging nearby enemies for several seconds.
- Thundering Blow (E)
- Jayce deals magic damage to an enemy based on their maximum health and knocks them back a short distance.
- Transform: Mercury Cannon (Ultimate)
- Transforms the Mercury Hammer into the Mercury Cannon gaining new abilities and increased range. The first attack in this form reduces the target's armor and magic resist.
- Cannon Stance
- Shock Blast (Q)
- Jayce fires an orb of electricity that detonates upon hitting an enemy (or reaching the end of its path) dealing physical damage to all enemies in the area of the explosion.
- Hyper Charge (W)
- Jayce gains a burst of energy, increasing attack speed to maximum for 3 attacks.
- Acceleration Gate (E)
- Jayce deploys an Acceleration Gate increasing the movement speed of all allies who pass through it. If Shock Blast is fired through the gate the missile speed, range, and damage will increase.
- Transform: Mercury Hammer (Ultimate)
- Transforms the Mercury Cannon into the Mercury Hammer gaining new abilities and increasing armor and magic resist. The first attack in this form deals additional magic damage.
References
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