Containment Construct

Whenever this creature attacks, exile target card from a graveyard.

Unearth (: 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.)

, : Draw a card. Then discard a card unless you exile a historic card from your graveyard. (Artifacts, legendaries, and Sagas are historic.)

Whenever you discard a card, exile that card from your graveyard.

, : Draw a card, then discard a card.

, , Sacrifice this artifact: Return all cards exiled with this artifact to their owner's hand.

Sacrifice this creature: Exile up to four target cards from a single graveyard. Activate only as a sorcery.

When this creature dies, you may pay . If you do, discover 4. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

, Exile this card from your graveyard: Create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

This creature can't block.

, Exile another creature card from your graveyard: Return this card from your graveyard to the battlefield.