Paleontologist's Pick-Axe #16

Whenever equipped creature attacks, draw a card, then discard a card. Equip 1 Craft with one or more creatures 5 (5, Exile this artifact, Exile one or more creatures you control and/or creature cards from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

When Dinosaur Headdress enters the battlefield, attach it to target creature you control. As Dinosaur Headdress becomes attached to a creature, choose an exiled creature card used to craft Dinosaur Headdress. Equipped creature is a copy of the last chosen card. Equip 2