Terrarian Economy

When a creature damaged or destroyed by a permanent, spell or ability this turn dies, the controller of the permanent, spell or ability gets a colorless Coin artifact token with:
-"{t}, Sacrifice this artifact: Add {c}" if the creature had a cmc of 1 or 2
-"{t}, Sacrifice this artifact: Add one mana of any color" if the creature had a cmc of 3 or 4
-"{t}, Sacrifice this artifact: Add two mana of any color" if the creature had a cmc of 5, 6 or 7
-"{t}, Sacrifice this artifact: Add three mana of any col