Living Tribunal with the UN Vs Living Tribunal
So TOAA creates another duplicate of the LT with the same powers/level of omnipotence and steals the Ultimate Nullifier from Galactus' ship and gives it to one of them. Then he tells the other LT to stand on defensive mode/stance with any shield barrier he can create, and tells the other LT to shoot the UN without amping it.
Will the second Tribunal survive or will he be erased from existence?