Ranger Units specialize in Critical Strikes and gain additional AD bonuses. Abilities can Critically Strike

Critical Strikes heal for 10% of Damage Done

2/4/6

(2) - Gain 15% AD + 12% Crit Strike
(4) - Gain 28% AD + 33% Crit Strike
(6) - Gain 33% AD + 40% Crit Strike + Enemies killed by critical strikes drop a small health orb that heals 200 health.