My Ultimate Moves Have an Endless Combo

After entering the game, he finds he can’t choose a class. Luckily, he can copy the skills of monsters and NPCs, then chain them together with no cooldown. Now that’s powerful. First, he’ll copy all the class trainers’ ultimate moves. He can’t let the top BOSSes’ ultimate moves slip by either. When the combined armies of the major game regions come for him, Ye Nan has to decide: which ultimate move will be the most satisfying for killing them?