Sea Gowned Niaiad

Bestow {4}{u}: (If you cast this card for its bestow
cost, it's an Aura spell with enchant creature. It
becomes a creature again if it's not attached to a
creature.)
Prayer (A creature can help cast this spell. The
creature adds colored mana equal to its devotion to
Blue. A Cleric adds an additional {1}).
Hexproof
Enchanted creature gains +1/+2 and Hexproof.
"She is a weaver of storm waves.".