Sabrina, Psychic Master

Play with the top card of your library revealed.
You may play lands and cast spells from the top
of your library.
{u}{b}: Exile the top card of your library put
time counters on the exiled card equal to that
card's mana value. If it doesn't have suspend, it
gains suspend.
Whenever a player casts a spell, they may choose
to pay {1} if they dont, remove a time counter
from each other card you own in exile.