Ravaging Hellswarm

Flying
When Ravaging Hellswarm enters the battlefield,
exile target nonartifact creature or land. Its controller creates a colorless Debris artifact token
with "Sacrifice this artifact: Add {c}."
When Ravaging Hellswarm dies, until your next
turn, if an opponent taps a land for mana, it
produces {c} instead of any other type and
amount.