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Arcane Knowledge (Season Two Mastery)

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Offense Mastery Tree
Summoner's Wrath (Season Two Mastery)Brute Force (Season Two Mastery)Mental Force (Season Two Mastery)Butcher (Season Two Mastery)Alacrity (Season Two Mastery)Sorcery (Season Two Mastery)Demolitionist (Season Two Mastery)Deadliness (Season Two Mastery)Weapon Expertise (Season Two Mastery)Arcane Knowledge (Season Two Mastery)Havoc (Season Two Mastery)Lethality (Season Two Mastery)Vampirism (Season Two Mastery)Blast (Season Two Mastery)Sunder (Season Two Mastery)Archmage (Season Two Mastery)Executioner (Season Two Mastery)Offensetree2
Other Mastery Trees:
Defense · Utility
Arcane Knowledge mastery s2
Arcane Knowledge is a tier 3 offense mastery with 1 rank.


  • Grants 10% magic penetration.


  • Requires 8 points in Offense.
  • Requires 4 points in Sorcery mastery s2.png Sorcery (Deprecated template: use Mi1 to Mi6.).


  • Arcane Knowledge mastery s2.png Arcane Knowledge is very useful to champions who focus on doing magic damage, but keep in mind that percent magic penetration factors in after percentage magic resist reduction, flat magic resistance reduction, and flat magic penetration.

Patch History


  • Removed.


  • Redesigning of masteries.

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