Skaði, God of the Cold

Indestructible.
Skaði, God of the Cold's power is equal to
your devotion to blue/white.
White and blue creatures you don't control
can't deal damage.
When this attacks, create two 2/2 Frost
Giant creature tokens.
{w/u}{w/u}{w/u}{w/u}: Create a 4/4 Frost Giant creature
token with Menace.