|"You belong in a museum!"
Suppression was rumored to be a mastery coupled with thesummoner spell, but, like the summoner spell it modifies, was never implemented into the actual game.
Effect per rank
- Reduces the cooldown of by 10 seconds, and increases the duration by 0.5 seconds
- Also, the champion affected by Stifle will deal 75% reduced damage and take 25% increased damage, instead of 60% and 20%, respectively.