Taming the Oasisaur will require two things; a deceased creature's Death Essence, and a weapon. Ranged weapons and ammo for them such as a Fabricated Sniper Rifle or a Longneck Rifle are recommended. In order to begin the taming progress, a Survivor must climb onto the Oasisaur's back (whether by landing on it with a flying creature or using Grappling Hooks). Placing the Death Essence inside the inventory of the oasis will begin a taming mini-game. A baby clone of the resurrected creature will spawn in the oasis, with three bars over it; the green bar is the baby's health bar, the white bar is related to how many enemies you have to kill to complete the current wave, and the orange bar is the mini-game/taming progress.

Passive: You need to tame it while the Oasisaur is awake.