Xander, Soul-Caller

Creature tokens you control have flying, haste
and lifelink.
{w}{b}, Exile a creature card from your graveyard:
Create a 1/1 white and black Spirit creature token.
If this is the third time this ability has resolved this
game, you may summon Sarakeg, Elder Dracolich.
(You may put Sarakeg, Elder Dracolich into play
from your exile zone.)