Silent Arbiter [Conspiracy] Oath of the Gatewatch Prerelease Promos Target creature gets +X/+0 until

Target creature gets +X/+0 until end of turn

Set: Dragons of Tarkir Prerelease Promos Type: Legendary Creature — Elder Dragon Rarity: Mythic Cost: {4}{B}{R} Flying

When Ulamog

Set: Dominaria Prerelease Promos Type: Legendary Artifact Rarity: Mythic Cost: {0} {T}: Add one mana of any color among legendary creatures and planeswalkers you control

In this Collector Booster

Silent Arbiter [Conspiracy] Oath of the Gatewatch Prerelease Promos Target creature gets +X/+0 untilSet: Conspiracy Type: Artifact Creature Construct Rarity: Rare Cost: {4} No more than one creature can attack each combat. No more than one creature can block each combat. Scholars say that arbiters exist on every world, created by an unknown hand to enforce justice.