Irelia Ability (LoL): Ionian Fervor

Irelia gains 1 Ionian Fervor stack for every enemy champion hit by her abilities, or if she hits at least one non-champion, stacking up to 4 times. Ionian Fervor lasts for 6 seconds, with basic attacks against champions and large monsters refreshing the duration.

Ionian Fervor: Irelia's basic attacks deal 4-17 (based on level) (+ 4% AD) bonus magic damage per stack. At maximum stacks, Irelia gains 30 / 40 / 50% bonus attack speed and deals an additional 30-198 (based on level) (+ 24-48% (based on level) AD) true damage against shields.