Kanheim, the Rot Haven

Whenever you sacrifice a permanent, Ritual
1.(Exile target card from a graveyard. Add one
mana of any color to your mana pool.)
Whenever a Shaman enters the battlefield, create one Bones token with, "{t}:Sacrifice this token, Scry 1."
{t}: Add one mana of any color to your mana pool. Lose one life.