League of Legends Mastery: Summoner's Insight
Mastery Tree: Cunning
Improves the following Summoner Spells:
Teleport: Reduces cast time by 1 second.
Promote: Increases promoted minion's bonus defensive stats by 15%.
Flash: Reduces cooldown by 15 seconds.
Clarity: Increases Mana restored by 20%.
Clairvoyance: Increases duration by 2 seconds.
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