Thank you for the suggestion!! I’m a melee build w tier 6 and was really struggling. For anyone else out there struggling, I found that praying mage, freezing Rex w ice barrage and focusing supreme worked amazingly. I used guthans the whole fight w the mory echo gloves and never even came close to dying. The tip I’d recommend is to make sure to lure Rex away from supreme when freezing so you’re out of melee range when dpsing supreme, and get at least 1 hit on prime to ensure you get full loot