Horcruxes just make it so Voldy can't technically die. He can still be reduced to that ghost thing he was at the very beginning of Harry Potter, that can't do much but run around and eat unicorns
Thing about this fight is, I seem to remember Voldemort teleport spamming a lot in his fight with Dumbledore. That might help him hit first, and whoever hits first in this thing is gonna win
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We are thought, and reality, and concept, and the unimaginable