The Ball - Fellwar Stone (Borderless) [Secret Lair Drop Series] Oath of the Gatewatch Prerelease Promos you'll find everything you need

you'll find everything you need to incorporate one of these powerful repulsor tanks into your Galactic Republic armies

You can only use each effect of "Primathmech Alembertian" once per turn

then if it has 0{d}

Set: Black & White: Boundaries Crossed Type: Grass Rarity: Ultra Rare Retreat cost: Colorless

Set: Arabian Nights Type: Creature — Human Bird Rarity: Common Cost: {2}{R} Flying

The Ball - Fellwar Stone (Borderless) [Secret Lair Drop Series] Oath of the Gatewatch Prerelease Promos you'll find everything you needSet: Secret Lair Drop Series Type: Artifact Rarity: Rare Cost: {2} {T}: Add one mana of any color that a land an opponent controls could produce.