Riveteers Provocateur

Menace When this creature enters, choose a creature card in your hand without blitz. It perpetually gains blitz. The blitz cost is equal to its mana cost. Blitz {B}{R} (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end

step.)

From Magic: The Gathering.

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