Teferi's Time Retrieval

This spell can't be countered.
Scry 1 (Look at the top card of your library, then you
may put that card on the bottom of your library.)
End the turn. (Exile all spells and abilities on the
stack, including this card. The player whose turn it is discards down to their maximum hand size. Damage
wears off, and "this turn" and "until end of turn"
effects end.)