What are the abilities of Scrapwork Mutt?
user
When Scrapwork Mutt enters, you may discard a card. If you do, draw a card.\nUnearth {1}{R} ({1}{R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)
assistant