Cedrim Cel, Master Archivist

You may choose not to remove time counters
from cards you own in exile. Whenever a player
casts an instant or sorcery spell from anywhere
other than their hand exile it as it resolves.
{x}{w/u}: exile target card in your graveyard with
mana value X and put 2 time counters on it.
If it doesnt have suspend it gains suspend.
Anything can be saved for later.