Sacrificial Hook

Morbid — At the beginning of each end step, if a
creature died this turn, put a soul counter on
Sacrificial Hook.

{t}: Add X mana of any one color, where X is the number
of soul counters on Sacrificial Hook. Spend this mana only
to cast instant, sorcery, Demon, and Spirit spells.

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"These vicious hooks, strewn about this nightmarish world, represent the true horror of the thing that ru