Sloane the Seer

{t}: Draw a card, then exile a card from your hand
and put a number of time counters on it equal to its
mana value. It gains "When the last time counter is removed from this card, if it's exiled, you may cast it without paying its mana cost. If you cast a creature
spell this way, it gains haste until end of turn."
Then remove a time counter from each other card
you own in exile.