
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."
Callaphe, Beloved of the Sea has 4 printings, first in Theros Beyond Death (2020). EDHREC ranks it #7,834 among Commander cards. It appears most in Zur the Enchanter decks (1,883 on EDHREC). It has 9 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.