Callaphe's power is equal to your devotion to blue. (Each
![](images/referenceimages/icons/magic_blue.png)
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
![](images/referenceimages/icons/magic_1.png)
more to cast."