He considered them invaders and usurpers, responsible for stealing Amani land and spilling Amani blood. Zul'jin's hatred for the high elves was as fierce as his reputation. His ruthlessness and cunning were feared by the high elves. The Farstriders in particular considered Zul'jin their most hated enemy, as his raids had frequently cost the lives of their comrades. He was infamous for his daring raids on the outskirts and villages of Quel'Thalas, known to swiftly strike at high elven settlements and then to disappear before the elves could marshal a counter-attack. Zul'jin of the Amani tribe was known as a fearsome troll leader by the high elves.

After his death, his soul was sent to Revendreth. Zul'jin - styled as 'Warlord Zul'jin' - used to be found as the final boss encounter of Zul'Aman in Ghostlands, the capital of the Amani tribe. He was killed by Azerothian adventurers who raided Zul'Aman during the invasion of Outland. Upon gaining his freedom, he went into hiding to rebuild his army and plan an attack on the remnants of the high elves, now known as blood elves, only to find them allied with the reformed Horde.

Zul'jin and the Amani tribe were allied with the orcish Horde for the duration of the Second War, but Zul'jin himself was captured near its end by Halduron Brightwing, in whose custody he lost an eye and an arm, which he never regenerated. Zul'jin was a fierce enemy of the high elves, with whom he shared many years of conflict. Zul'jin (also spelled Zuljin ) was the Warlord of the Amani forest trolls and chieftain of the Amani tribe since before the Second War. You wanna stay, you stay here forever! We gonna bury you here.”

De Amani never give up! We never forget! We never die. And now, dey fight alongside de Horde?! I spit on de Horde! I hate you.

We Amani was here before ANYONE! Da elves and their Alliance came ta drive us out.

What happend to jins hand