Passive: Every third basic attack, Xin Zhao Critically strikes for 25 / 37.5 / 50 / 62.5 / 75% bonus Crit Damage, and also heals himself for 30 / 35 / 40 / 45 / 50 (+40% of ability power) (+0.2 per bonus attack damage).
Active: Xin Zhao unleashes a battle cry, granting him 40 / 45 / 50 / 55 / 60 % attack speed for 5 seconds.
Also useful for taking the cooldown on your ultimate when you are just killing creeps
Also handy for quick tower pushes