Ekko Ability (LoL): Z-Drive Resonance

Ekko's Zero-Drive charges his spells and attacks with temporal energy, making him build up Resonance stacks on enemies which last up to 4 seconds. Every third stack deals 30-140 bonus magic damage (150% damage vs monsters). If the target is a champion, Ekko also gains 50 / 60 / 70 / 80% movement speed for the duration. Z-Drive Resonance cannot affect the same target twice within 5 seconds.