Cloudeater leviathan

Flying, protection from red, protection from blue.
Cloudeater leviathan enters the battlefield with X
+1/+2 tokens on it
{t}: Cloudeater leviathan may be treated as a blue
land this turn, where X is the amount of blue mana added to your mana pool.
It camoflauges itself against the clouds, and swoops down to envelop its prey with a resonating roar