Vessel of Damned Souls

Whenever a creature dies or an opponent takes
damage, put a soul counter on
Vessel of Damned Souls.
{t}, Remove a Soul counter: Add {3}. Draw a card.
Whenever you take damage, remove a
Soul counter from Vessel of Damned Souls..
{t}, Sacrifice Vessel of Damned Souls: Restore X
life and target opponent mills X cards, where X
is the number of soul counters on Vessel of
Damned Souls.