Temporal Unravelling

(You may cast a legendary instant only if you control
a legendary creature or planeswalker.)
Return all permanents that entered the
battlefield this turn to their owner's hand, then
return each permanent cards that were put into
a graveyard from the battlefield this turn onto
the battlefield under their owner's control.
End the turn. Exile Temporal Unravelling.
"Know that anything you do, i can undo."