The wizard retreated, left, exited the scene!
And then returned with one of the earlier encounters in tow. It was a tarrasque. Yes. Which he dropped in the middle of everyone else's combat.
Many a character died that night. But when his wizard dropped, the wizard's animated armor picked up his corpse and took off with it. In just such a case, the armor was directed to trigger a spell which pretty much transfers the wizard's spirit from his dead body, TO HIS NEW BODY, WHICH WAS WAITING! It was pretty cool!