User blog comment:Asfidyll/Averyth, the Riftblade Hunter/@comment-24141319-20131118154225/@comment-11434673-20131118173223

Passive overpowered? It deals 20% AD once every 8 seconds. Thats 2.5% AD per second inbetween triggers. Thats really damn weak. Her base damage is only 111.3 damage, so with that, at level 18 her passive would be dealing a whole 22.26 damage. At 300 damage, it'd be dealing 60 damage once every 8 seconds. With Zed's or Riven's passives, they scale with level, and in Zed's case, with enemy health so they are much, much stronger.