The Time Stone

When The Time Stone enters the battlefield,
Surveil 5 (Look at the top 5 cards of your library,
then put any number of them into your graveyard
and the rest on top of your library in any order.)
{3}, {t}: Tap or untap target permanent.
{5}, {t}: Create a token that's a copy of target permanent in your graveyard. Exile it at the
beginning of your next upkeep.