Obosynn, the Lantern Bearer

Flying, deathtouch, vigilance, lifelink
Whenever a nontoken Cleric you control dies,
you lose 1 life and create a 1/1 white and black
Phyrexian Cleric token.
{w}{w}{b}{b}, Pay 6 life: Return Obosynn from your graveyard to the battlefield with an oath counter
on it. It gains "As long as this creature has an
oath counter, it can't attack or block and
can't be sacrificed."