Rek'Sai Ability (LoL): Void Rush

Rek'Sai targets an enemy damaged by her in the last 5 seconds and then dives underground, becoming untargetable. Moments later, she leaps unstoppably at her target dealing 150 / 250 / 350 (+1.0 per bonus attack damage) plus 15 / 20 / 25% of the target's missing health as physical damage.