Cuprum Dragon

Flying, haste
Cuprum Deluge — Whenever this creature attacks, create a treasure token. It gains +1/+0 for each treasure token you control until end of turn.
Amidst molten realms, the Cuprum Dragon reigns, an inferno given form. With wings ablaze and scales like molten cuprum, it harnesses the raw essence of metal, dotting the lands with magma