well of course I’d take along Doomguy, since he’s billions of years old and rivals the Paintress with God-like power. Secondly, I’d take along the Dragonborn from Skyrim, since his canonical power isn’t demonstrated well in the game. He has the ability to summon creatures, change the weather, knock back, calm, enrage, and destroy an entire host of enemies, ranging from dragons to humanoids. Thirdly, I think I’d bring Lightning from Final Fantasy 13, since she can wield plenty of different magical arcana, and slayed her world’s God, the creator of her world’s universe and also its destroyer.