Soulless Sliver

Flying
All eldrazi and sliver have devoid and ingest.
Whenever a card is put into exile from anywhere,
you may pay {w}{r}{b}{g}. If you do, put a soul
counter on Soulless Sliver.
{4}{u}{u}: Fateseal X. (To fateseal X, look at the top
X cards of an opponent's library, then put any number
of them on the bottom of that player's library and the
rest on top in any order.)X is the number of soul
counter on this card.