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 5 times. Ionian Fervor lasts for 6 seconds, with basic attacks against champions and large monsters refreshing the duration.

Ionian Fervor: Irelia gains 8 / 12 / 16% attack speed (depending on level). At maximum stacks, Irelia gains 40 / 60 / 80% (at levels 1/7/13) bonus attack speed and her attacks deal an additional 15-66 (depending on level) (+ 25% bonus attack damage) on-hit magic damage.