Bahamut the savior

flying protection from white, red, and green
When Bahamut the Savior enters the battlefield,
it deals 2 damage to any target for each Dragon
you control.
If you control 3 or more Bahamut the Savior, it
deals 2 more damage for each dragon you control.
when Tiamat the evil Goddess dies transform
Bahamut the Savior to Bahamut new dragon god.