Blood- Channeling Altarstone.

Whenever a creature is sacrificed, put a Blood
counter on Blood-Channeling Altarstone.
Sacrifice a Creature: Add one mana of any color.
Sacrifice a Creature {1}{t}: Scry 2
Remove 3 Blood counters from Blood-
Channeling Altarstone: Draw a Card
"This and blood shows the present and future." Vona
(Transformed Sacrificial Center)