In fact, the final requirement involves doing 17 quests in total. This involves completing different chapters and quests. Unlocking Zandalari Trolls in World of Warcraft requires you to complete various achievements. How Long It Takes To Unlock Zandalari Troll in World of Warcraft?.How Long It Takes To Complete The Zandalari Troll Quest Line in World of Warcraft?.How Long It Takes To Complete Horde War Campaign in World of Warcraft?.How Long It Takes To Complete The Zandalar Forever Achievement in World of Warcraft?.