The champion was officially revealed first in the November issue of PCGamer:
Designed to be a burst melee DPS character the thrives whens she's outnumbered, Irelia's biggest weakness is stuns and other crowd control. Her abilities - a dash whose cooldown is refreshed when you successfully kill a target with it, a passive boost to her attack speed when surrounded by opponents and an ultimate ability that summons one or more floating blades to fight alongside her.
Dicen que saldrá en noviembre segun la revista PCGamer