Gulthias, Vampiric Ancestor

Deathtouch, lifelink, vigilance
Whenever you gain life, create a blood token.
When Gulthias dies, you may pay {w/b}{w/b} or sacrifice
a blood token. If you do, return Gulthias to the battlefield tapped under its owner's control.
As long as Gulthias is untapped, if you control a
blood token, other creatures you control get +0/+2
and have lifelink.