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Masteries, like Runes, are enhancements that summoners provide their champions. They are divided into three trees (groups): Offense, Defense, and Utility. Each group has six tiers. Within a group, all but the first tier are locked when you first start, with a successive tier opening with each 4 points spent in the same group.

A summoner can put one point per summoner level (up to level 30) into masteries. Due to the number of masteries available, this means that a summoner cannot have access to all of the masteries at once, nor even an entire group all at once.

Contents 1 Masteries by Effect Type 2 Offense Mastery Tree (Season Two) 3 Defense Master Tree (Season Two) 4 Utility Mastery Tree (Season Two) 5 Comments

Masteries by Effect Type Edit

• Ability Power
  • Mental Force (flat Ability Power) - Offense Tier 1
  • Blast (Ability Power per level) - Offense Tier 4
  • Archmage (percentage increase to Ability Power) - Offense Tier 5

• Basic Attacks
  • Brute Force (attack damage) - Offense Tier 1
  • Butcher (bonus damage to minions & monsters) - Offense Tier 1
  • Alacrity (attack speed) - Offense Tier 2
  • Demolitionist (bonus damage to turrets) - Offense Tier 2
  • Deadliness (attack damage per level) - Offense Tier 3
  • Lethality (critical strike damage) - Offense Tier 4
  • Vampirism (Life Steal) - Offense Tier 4
• Cooldown Reduction
  • Sorcery (flat Cooldown Reduction) - Offense Tier 2
  • Enlightenment (Cooldown Reduction per level) - Defense Tier 4
  • Intelligence (flat Cooldown Reduction) - Utility Tier 5
  • Mastermind (Summoner Spell Cooldown Reduction) - Utility Tier 6

• Damage Amplification
  • Weapon Expertise (percentage armor penetration) - Offense Tier 3
  • Arcane Knowledge (percentage magic penetration) - Offense Tier 3
  • Havoc (increase all damage dealt) - Offense Tier 3
  • Sunder (flat armor penetration) - Offense Tier 5
  • Executioner (increases damage by 6% to targets below 40% health) - Offense Tier 6
  • Siege Commander (reduces turret armor) - Defense Tier 4
• Damage Reduction
  • Hardiness (flat Armor) - Defense Tier 1
  • Resistance (flat Magic Resist) - Defense Tier 1
  • Tough Skin (reduces damage from minions and monsters) - Defense Tier 1
  • Indomitable (flat damage reduction) - Defense Tier 3
  • Evasion (reduces damage from area of effect abilities) - Defense Tier 3
  • Honor Guard (percentage damage reduction) - Defense Tier 5

• Enhancements to Summoner Spells
  • Summoner's Wrath (improves Exhaust, Ignite, Surge, Ghost) - Offense Tier 1
  • Summoner's Resolve (improves Revive, Cleanse, Heal, Smite, Garrison) - Defense Tier 1
  • Summoner's Insight (improves Teleport, Promote, Flash, Clarity, Clairvoyance) - Utility Tier 1
  • Mastermind (Summoner Spell Cooldown Reduction) - Utility Tier 6
• Gold
  • Mercenary (bonus gold for champion kills and assists) - Defense Tier 5
  • Greed (bonus gold every 10 seconds) - Utility Tier 3
  • Wealth (bonus starting gold) - Utility Tier 4
• Healing
  • Vampirism (Life Steal) - Offense Tier 4
  • Summoner's Resolve - (improves healing from Heal) - Defense Tier 1
  • Vigor (flat Health Regen) - Defense Tier 2
  • Transmutation (Spell Vamp) - Utility Tier 3
  • Perseverance (percentage Health and Mana Regen increase) - Utility Tier 5
• Health
  • Durability (Health per level) - Defense Tier 2
  • Vigor (flat Health Regen) - Defense Tier 2
  • Veteran's Scars (flat Health) - Defense Tier 3
  • Juggernaut (percentage maximum Health increase) - Defense Tier 6
• Mana
  • Summoner's Insight (improves Clarity) - Utility Tier 1
  • Expanded Mind (Mana per level) - Utility Tier 1
  • Meditation (flat Mana Regen) - Utility Tier 2
  • Perseverance (percentage Health and Mana Regen increase) - Utility Tier 5
• Movement and Transportation
  • Summoner's Wrath (improves Ghost) - Offense Tier 1
  • Initiator (increased speed when above 70% Health) - Defense Tier 4
  • Summoner's Insight (improves Teleport and Flash) - Utility Tier 1
  • Improved Recall (reduces the cast time of Recall) - Utility Tier 1
  • Swiftness (percentage speed increase) - Utility Tier 2
• Other
  • Bladed Armor (returns 6 damage against minion and monster attacks) - Defense Tier 3
  • Good Hands (reduces time spent dead) - Utility Tier 1
  • Scout (increased vision range for wards) - Utility Tier 2
  • Runic Affinity (Increases the duration of shrine, relic, quest, and neutral monster buffs) - Utility Tier 3
  • Awareness (increases experience gain) - Utility Tier 4
  • Sage (bonus experience for champion kills and assists) - Utility Tier 4

Offense Mastery Tree (Season Two) Edit

Mastery Name	Tier	Ranks	Effect	Similar Masteries
Summoner's Wrath	First	1	Improves the following summoner spells: Exhaust, Ignite, Surge, Ghost	Summoner's Resolve (Defense) Summoner's Insight (Utility) Mastermind (Utility)
Brute Force	First	3	+1 Attack Damage per rank	Butcher (Offense)
Mental Force	First	4	+1 Ability Power per rank	Archmage (Offense) Blast (Offense)
Butcher	First	2	+2 basic attack damage to minions and monsters per rank	Brute Force (Offense) Tough Skin (Defense)
Alacrity	Second	4	+1.5% Attack Speed per rank
Sorcery	Second	4	+1% Cooldown Reduction per rank	Enlightenment (Defense) Intelligence (Utility)
Demolitionist	Second	1	+10 basic attack damage to turrets	Siege Commander (Defense)
Deadliness	Third	4	+0.125 attack damage per level per rank (+2.25 damage per rank at level 18)	Lethality (Offense)
Weapon Expertise (requires 4 points in Alacrity)	Third	1	+10% Armor Penetration	Arcane Knowledge (Offense) Sunder (Offense)
Arcane Knowledge (requires 4 points in Sorcery)	Third	1	+10% Magic Penetration	Weapon Expertise (Offense)
Havoc	Third	3	Increase damage dealt by 0.5% per rank	Executioner (Offense) Honor Guard (Defense)
Lethality (requires 4 points in Deadliness)	Fourth	1	+10% Critical Strike Damage	Deadliness
Vampirism	Fourth	3	+1% Life Steal	Transmutation (Utility)
Blast	Fourth	4	+0.25 Ability Power per level per rank (4.5 Ability Power at level 18 per rank)	Archmage (Offense) Mental Force (Offense)
Sunder	Fifth	3	+2 Armor Penetration per rank	Weapon Expertise (Offense)
Archmage	Fifth	4	Increases Ability Power by 1.25% per rank	Blast (Offense) Mental Force (Offense)
Executioner	Sixth	1	Increases damage dealt by 6% to targets below 40% health	Havoc (Offense)

Defense Master Tree (Season Two) Edit

Mastery Name	Tier	Ranks	Effect	Similar Masteries
Summoner's Resolve	First	1	Improves the following summoner spells: Revive, Cleanse, Heal, Smite, Garrison	Summoner's Wrath (Offense) Summoner's Insight (Utility) Mastermind (Utility)
Resistance	First	3	+2 Magic Resist per rank
Hardiness	First	3	+2 Armor per rank
Tough Skin	First	2	Reduces damage from minions and monsters by 1 per rank	Butcher (Offense)
Durability	Second	4	+1.5 Health per level per rank (27 Health per rank at level 18)
Vigor	Second	3	+1 Health Regen per 5 seconds per rank	Meditation (Utility) Perseverance (Utility)
Indomitable	Third	2	Reduces incoming damage by 1 per rank
Veteran's Scars (requires 4 points in Durability)	Third	1	+30 Health
Evasion	Third	3	Reduces damage from area effect abilities by 1% per rank	Honor Guard (Defense)
Bladed Armor (requires 2 points in Tough Skin)	Third	1	Returns 6 damage against minion and monster attacks
Siege Commander	Fourth	1	Reduces the Armor of nearby towers by 10 (does not stack)	Demolitionist (Offense)
Initiator	Fourth	3	+1% Movement Speed per rank when above 70% Health	Swiftness (Utility)
Enlightenment	Fourth	3	+0.15% Cooldown Reduction per level per rank (2.7% Cooldown Reduction per rank at level 18)	Sorcery (Offense) Intelligence (Utility)
Honor Guard	Fifth	3	Reduces damage taken by 0.5% per rank	Evasion (Defense) Havoc (Offense)
Mercenary	Fifth	3	Gain 8 bonus gold per rank on champion kills and assists (50% reduced effect on the Crystal Scar)	Sage (Utility)
Juggernaut	Sixth	1	Increases your maximum Health by 3% and reduces the duration of incoming disables by 10%

Utility Mastery Tree (Season Two) Edit

Mastery Name	Tier	Ranks	Effect	Similar Masteries
Summoner's Insight	First	1	Improves the following summoner spells: Teleport, Promote, Flash, Clarity, Clairvoyance	Summoner's Wrath (Offense) Summoner's Resolve (Defense) Mastermind (Utility)
Good Hands	First	3	Reduces time spent dead by 4/7/10%
Expanded Mind	First	3	+4 Mana per level per rank (72 Mana per rank at level 18)
Improved Recall	First	1	Reduces the cast time of Recall by 1 second and Enhanced Recall by 0.5 seconds
Swiftness	Second	4	+0.5% Movement Speed per rank	Initiator (Defense)
Meditation (requires 3 points in Expanded Mind)	Second	3	+1 Mana Regen per 5 seconds per rank	Vigor (Defense) Perseverance (Utility)
Scout	Second	1	Increases vision range of wards by 5%
Greed	Third	4	Gain 0.5 gold per rank every 10 seconds	Wealth (Utility)
Transmutation	Third	3	+1% Spell Vamp per rank	Vampirism (Offense)
Runic Affinity	Third	1	Increases the duration of shrine, relic, quest, and neutral monster buffs by 20%
Wealth (requires 4 points in Greed)	Fourth	2	Increases starting gold by 20 per rank	Greed (Utility)
Awareness	Fourth	4	+1.25% experience gain per rank
Sage	Fourth	1	Gain 40 bonus experience on champion kills and assists (50% reduced effect on the Crystal Scar)	Mercenary (Defense)
Perseverance	Fifth	3	+3% Health and Mana Regen per rank	Vigor (Defense) Meditation (Utility)
Intelligence	Fifth	3	+2% Cooldown Reduction per rank	Sorcery (Offense) Enlightenment (Defense)
Mastermind	Sixth	1	Reduces the cooldown of your Summoner Spells by 15%	Summoner's Wrath (Offense) Summoner's Resolve (Defense) Summoner's Insight (Utility)