Mastermind

		"You belong in a museum!" This article or section may contain obsolete information, but exists here for historical purposes.

• Season 2013
• Season 2012

Utility Mastery Tree (2013)
Other Mastery Trees:
Offense • Defense

Mastermind was a tier 2 Utility mastery with 3 ranks.

Effect per Rank

• Reduces summoner spells' cooldowns by 4 / 7 / 10% each.

Requirements

• Requires 4 points in Utility.

Notes

• Mastermind stacks multiplicatively with Distortion and with Eleisa's Miracle.
• Mastermind applies before flat cooldown reduction from effects such as Summoner's Insight.

Patch History

V3.14

• Removed due to Season 2014.

V1.0.0.152

• Added
• Tier 2 Utility mastery with 3 ranks.
• Reduces summoner spells' cooldowns by 4 / 7 / 10% each.

Utility Mastery Tree (2012)
Other Mastery Trees:
Offense • Defense

Mastermind was a tier 6 Utility mastery with 1 rank.

Effect per Rank

• Reduces summoner spells' cooldowns by 15% each.

Requirements

• Requires 20 points in Utility.

Notes

• Mastermind applies after other reductions for summoner spells' cooldowns.

Patch History

V1.0.0.152

• Removed due to Season 2013.

V1.0.0.129

• Added
• Tier 6 Utility mastery with 1 rank.
• Reduces summoner spells' cooldowns by 15% each.