Sangromancer's Quill

{t}, pay 1 life: add one mana of any color
{t}, pay 3 life: exile the top card of your library
with a tome counter on it, you may play it for
as long as it's exiled. At the beginning of your
end step, put all cards exiled with sangromancer's
quill into its owner's graveyard.
At the beginning of each upkeep you may pay
2 life, if you do untap sangromancer's quill