Mox Amber [Dominaria Prerelease Promos] Devil if Mana Vault is tapped

if Mana Vault is tapped

{T}: Counter target activated ability from an artifact source unless that ability's controller pays {W}

{1}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn

will fight them for you

they rise to meet their enemies

Mox Amber [Dominaria Prerelease Promos] Devil if Mana Vault is tappedSet: Dominaria Prerelease Promos Type: Legendary Artifact Rarity: Mythic Cost: {0} {T}: Add one mana of any color among legendary creatures and planeswalkers you control. A moment in time made tangible, it has the power to realize epic visions.