Rules question about stashed monsters

[beckerage]

If they survive the whole round and get put back in your hand their damage tokens just go away correct?

Or am I wrong? Thanks

[Aleph]

Any tokens on cards in your stash get moved back into the stockpile when they are unstashed in your warmup phase. So yes, you are correct.

See: http://munchkinccg.game/gameplay/rules/#Unstash

[Misplaced Buckeye]

Just so I'm clear on one other point. Allies that are zapped retain their damage when unzapped for the next player round ...correct?

[Aleph]

Allies do not have any rules that automatically heal them. They retain any damage they are dealt until it is healed by some ability.