Spend this mana only to cast an artifact spell or activate an ability of an artifact source
Let's assume you have a Circle of Protection from red magic, and you are attacked by a Goblin, which is a red creature
(Each in the mana costs of permanents you control counts toward your devotion to blue.) Creatures and enchantments you control have "Spells your opponents cast that target this permanent cost more to cast." Creatures and enchantments you control have "Spells your opponents cast that target this permanent cost more to cast." Legendary Creature Enchantment - Demigod Ephara, God of the Polis Indestructible As long as your devotion to white and blue is less than seven, Ephara isn't a creature
In a digital-only environment, there isnt the usual requirement of spelling out every single detail on the card itself, which WotC says will open up new design possibilities or even allowing it to modify Davriels lists substantially post-release
One look around the room told him why: his formerly good arm lay severed on the floor near his bed, and attached to his shoulder in its place was the metal arm from days before