I was playing a "Phantom Bot Draft" and would have likely won in two turns, except that (I guess) he played a card that said "Return all...xxxx". The animation was so quick that I didn't see what card it was and was not able to read the rest of the text, but the card immediately returned five creatures from his graveyard. I spent two time extensions trying to find the card, but it was not in the graveyard.
It just occurred to me that it was probably exiled after use, but what card is this?
Edit: I attempted several times to upload two images (of the board and the graveyard cards), but for some reason they are not uploading.