Jingling coins beckon many an eager hand.

Curse of Opulence

Enchant player
Whenever enchanted player is attacked, create a Gold token. Each opponent attacking that player does the same. (A Gold token is an artifact with "Sacrifice this token: Add one mana of any color.")

Enchant player
Whenever enchanted player is attacked, create a colorless artifact token named Gold. It has "Sacrifice this artifact: Add one mana of any color to your mana pool." Each opponent attacking that player does the same.

Tarkir: Dragonstorm Commander

Murders at Karlov Manor Commander

Enchant player
Whenever enchanted player is attacked, create a Gold token. Each opponent attacking that player does the same. (A Gold token is an artifact with "Sacrifice this artifact: Add one mana of any color.")