Passive: Ekko's basic attacks deal bonus magic damage to enemies under 30% Health equal to 3% (+1% per 33 ability power) of their missing Health (min 15 and max 400 damage vs. minions and monsters).

Active: After a 3 second delay, Ekko creates a short-lived chronosphere at the target location that slows enemies who enter by 40%. If Ekko enters the sphere, he will detonate it, gaining a shield that absorbs 80 / 100 / 120 / 140 / 160 (+150% of ability power) damage for 2 seconds. Enemies caught inside are also stunned for 2.25 seconds.