Senjin, Riftwalker

This spell cannot be countered.
Devoid, Shroud, Vanishing 2
You may play face up spells without counters
from exile. Whenever you play a card this way,
shuffle it into its owners library instead of
putting it into a graveyard or exile. Otherwise,
it has Vanishing 2.
Senjins power is equal to the amount of face up
nonland cards without counters in exile.