Pollymorph Potion

[RL]

Note that some cards (but not Pollymorph Potion) explicitly state that combat ends as part of their effects. In those cases, combat does indeed end immediately and nobody can play additional cards such as wandering monsters. There are, however, quite a few cards that work in the same vein as Pollymorph Potion, and just because there are no monsters in the combat doesn't mean that combat ends immediately.