Accretion On-Hit, gain 1 stack of Accretion, and 5 stacks for immobilizing an enemy champion. These stacks last for the rest of the round, up to 50. Each stack increases your size by 2%.
ACTIVE (0s) Dark Star Summon a Black Hole that scales with your size. Slowing nearby enemies by 30% while those in the center are pulled closer and take magic damage each second, granting you 1 stack of Accretion. The Black Hole lasts for seconds.