Wanderer of Eternities

Cross Over {2} ({2}: Exile this card from the battlefield, then add {c} equal to the number of cards
you own in exile. You may only Cross Over as a
sorcery.)
At the beginning of your upkeep you may exile
two cards from the top of your library.
Before me stood a tall creature, its form towering and
its stride unwavering across the void. I got the feeling
it had wandered for longer than many planes had
existed, and it would continue long after they were
gone. -Devlin, Void Delver