Colossus of the Tides

Colossus of the tides cost {1} less to cast for each {u} in the mana costs amongst cards you control.
Trample.
As long as your devotion to Blue is 6 or higher,
Blue creatures you control have Hexproof.
As long as your devotion to Blue is 12 or higher,
Blue creatures you control have Indestructible.