Unseen Predator (Passive)
While in brush, Rengar leaps at his target with his basic attack.
Rengar's abilities build Ferocity. Upon reaching full Ferocity, his next ability becomes empowered and grants him Movement Speed on cast, but he instantly loses all Ferocity if he leaves combat.
Killing enemy champions awards trophies on Rengar's Bonetooth Necklace, permanently increasing his Attack Damage.