Byndorrir, Cursed King

Haunt(When this permanent is put into a graveyard
from the battlefield, exile it haunting target creature.)
When Byndorrir, Cursed King enters the battlefield and at the beginning of your upkeep
gain X life where X is the number of snow permanents you have.
Whenever a creature Haunted by Byndorrir
enters the combat phase tap that creature.
If Byndorrir, Cursed King was cast using its evoke
cost it Haunts X creatures
Evoke - {x}{x}{s}{w}