The Locked Tomb

When The Locked Tomb enters the battlefield, exile target creature from your graveyard with an ice counter on it. Otherwise, sacrifice The Locked Tomb.

{2},{t}: Add {b} equal to the mana value of target creature exiled by The Locked Tomb with an ice counter.
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"The tomb is stone and ice, ice that never melts and stone that's even colder, and inside, in the dark, there's a girl."