When this creature enters, draw a card.

{T}: Add {C}. {2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

Callaphe's power is equal to your devotion to blue. (Each {U} 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 {1} more to cast."

Flying Whenever this creature deals combat damage to a player, that player exiles the top card of their library. You may play lands and cast spells from among cards exiled with this creature.

{T}: Untap another target permanent. {T}: Untap two other target legendary creatures.