Pa'Milesh, Blood Ritualist

{2}{b}{r}{g}, {t}, Sacrifice a Shaman creature:
Search your library for a Curse card with
converted mana cost equal to 1 plus the sacrificed creature's converted mana cost, put that card
onto the battlefield attached to target player, then shuffle your library.
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Blood drained from a bitter heart, boiled down to
seething rage, spoiled with time to then impart a curse
to last another age.