Mojo Anti-Life Field
Mojo's anti-life field states that all buffs triggered on the opponent have 90% reduced duration. However, this doesn't seem to apply to the extra buff duration in situations where the opponent has increased buff duration (duped hyperion, 6.2 champion etc.) What I mean is that mojo will reduce the regular buff duration by 90%, but the extra duration is still the same. Not sure if this is intended or not