Opportunistic Dragon [Throne of Eldraine Prerelease Promos] Elder Dinosaur Manifest one of those cards

Manifest one of those cards

You may cast Dinosaur creature spells from among cards you own exiled with Intrepid Paleontologist

Set: Double Masters Type: Artifact Rarity: Common Cost: {B} {1}{B}

Whenever a creature you control with a +1/+1 counter on it attacks

Unearth {4}{B}{B} ({4}{B}{B}: Return this card from your graveyard to the battlefield

Opportunistic Dragon [Throne of Eldraine Prerelease Promos] Elder Dinosaur Manifest one of those cardsSet: Throne of Eldraine Prerelease Promos Type: Creature Dragon Rarity: Rare Cost: {2}{R}{R} Flying When Opportunistic Dragon enters the battlefield, choose target Human or artifact an opponent controls. For as long as Opportunistic Dragon remains on the battlefield, gain control of that permanent, it loses all abilities, and it can't attack or block.