Offense Mastery Tree
(2013)
Summoner's Wrath: Exhaust lowers target's MR/Armor by 10; Ignite gives +5 AD/AP when on cooldown; Ghost now grants 35% movement speed; Garrison now grants 50% splash damage to allied towers.Fury: Grants 1 / 2 / 3 / 4 % attack speed.Sorcery: Grants 1 / 2 / 3 / 4 % cooldown reduction.Butcher: Basic attacks deal 2 / 4 bonus damage to minions and monsters.Deadliness: Grants 3 / 6 / 9 / 12 AD at level 18 (.17 AD per rank per level)Blast: Grants 4.5 / 9 / 13.5 / 18 AP at level 18 (.25 AP per rank per level)Destruction: Increases damage to turrets by 5 %.Havoc: Increases damage by 0.67 / 1.33 / 2 %.Weapon Expertise: Grants 8% armor pen.Arcane Knowledge: Grants 8% magic pen.Lethality: Grants 2.5 / 5 % critical strike damage (doubled on melee champions).Brute Force: Grants 1.5 / 3 attack damage.Mental Force: Grants 2 / 4 / 6 ability power.Spellsword: Your basic attacks deal bonus magic damage equal to 5% of your ability power.Frenzy: Grants 10% attack speed for 2 seconds after landing a critical strike.Sunder: Grants 2 / 3.5 / 5 armor pen.Archmage: Grants 1.25 / 2.5 / 3.75 / 5% increased ability power.Executioner: Increases damage by 5% against targets below 50% health (excluding true damage).Season 3 Offense
Other Mastery Trees:
ProfileIcon0024 DefenseProfileIcon0012 Utility
Deadliness mastery 2013

Deadliness was a tier 2 Offense mastery with 4 ranks.


Effect per Rank

  • Grants 0.17 / 0.33 / 0.5 / 0.67 attack damage per level.
    • Rank 1: 0.17 - 3.06 (based on level)
    • Rank 2: 0.33 - 5.94 (based on level)
    • Rank 3: 0.5 - 9 (based on level)
    • Rank 4: 0.67 - 12.06 (based on level)

Requirements

  • Requires 4 points in Offense.


Patch History

V3.14
  • Removed due to Season 2014.
V1.0.0.152
  • Added
  • Tier 2 Offense mastery with 4 ranks.
  • Grants 0.17 / 0.33 / 0.5 / 0.67 attack damage per level.

Offense Mastery Tree
(2012)
Summoner's Wrath (Season 2012 Mastery)Brute Force (Season 2012 Mastery)Mental Force (Season 2012 Mastery)Butcher (Season 2012 Mastery)Alacrity (Season 2012 Mastery)Sorcery (Season 2012 Mastery)Demolitionist (Season 2012 Mastery)Deadliness (Season 2012 Mastery)Weapon Expertise (Season 2012 Mastery)Arcane Knowledge (Season 2012 Mastery)Havoc (Season 2012 Mastery)Lethality (Season 2012 Mastery)Vampirism (Season 2012 Mastery)Blast (Season 2012 Mastery)Sunder (Season 2012 Mastery)Archmage (Season 2012 Mastery)Executioner (Season 2012 Mastery)Season 2 Offense
Other Mastery Trees:
ProfileIcon0024 DefenseProfileIcon0012 Utility
Deadliness mastery 2012
Deadliness was a tier 3 Offense mastery with 4 ranks.


Effect per Rank

  • Grants 0.125 / 0.25 / 0.375 / 0.5 attack damage per level.
    • Rank 1: 0.125 - 2.25 (based on level)
    • Rank 2: 0.25 - 4.5 (based on level)
    • Rank 3: 0.375 - 6.75 (based on level)
    • Rank 4: 0.5 - 9 (based on level)

Requirements

  • Requires 8 points in Offense.

Strategy

  • Deadliness unlocks Lethality mastery 2012.png Lethality when maxed, making it strongest on AD carries.


Patch History

V1.0.0.152
  • Removed due to Season 2013.
V1.0.0.133
  • Removed: Granting 1 / 2 / 3 / 4% critical strike chance.
  • New Effect: Grants 0.125 / 0.25 / 0.375 / 0.5 attack damage per level.
V1.0.0.129
  • Added
  • Tier 3 Offense mastery with 4 ranks.
  • Grants 1 / 2 / 3 / 4% critical strike chance.

Offense Mastery Tree
(2011)
DeadlinessCripplePlentiful BountyArchmage's SavvySorceryAlacrityBurning EmbersArchaic KnowledgeSunderOffensive MasteryBrute ForceDemolisherLethalityImproved RallyHavocSeason 1 Offense
Other Mastery Trees:
ProfileIcon0024 DefenseProfileIcon0012 Utility
Deadliness mastery 2011

Deadliness was a tier 1 Offense mastery with 3 ranks.


Effect per Rank

  • Grants 0.66 / 1.33 / 2% critical strike chance.

Strategy

  • This mastery was great for champions that desired critical strike chance, primarily AD carries.


Patch History

V1.0.0.129
  • Removed due to Season 2012.
V0.8.21.110
  • Now properly display its name in its tooltip.
June 26, 2009 Patch
  • Added
  • Tier 1 Offense mastery with 3 ranks.
  • Grants 0.66 / 1.33 / 2% critical strike chance.