Pakini Heiau

Whenever you sacrifice a creature, if a creature you control has Ali'i Prestige, put a +1/+1 counter on it.
{t}: Add {b} or {r}.
{t}{2} Sacrifice a legendary creature: Until end of turn, you may spend mana from lands your opponents control as though it were mana in your mana pool. This mana may only be spent to activate Ali'i Prestige abilities.
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"At Pakini the gods were fed, and chiefs measured each other’s mana in blood."