Yorick Ability (LoL): Shepherd of Souls

Yorick raises a grave for every 8 / 7 / 6 / 5 / 4 / 3 / 2 enemies that die near him. Champions and large monsters always leave a grave.

These graves can be used to summon Mist Walkers with Awakening and Eulogy of the Isles. Mist Walkers have 100-300 (+15% maximum health) health and 15-75 (+0.2 per bonus attack damage) attack damage, and Yorick can control up to 4 in an area (depedning on level).