You have to build around Bahamut, making sure you can either cheat it out or reliably get to 9 mana
Balamb Garden, SeeD Academy / Balamb Garden, Airborne Rating: 6/10 Since yould always play this as a blue/green dual land, the opportunity cost to put this into your blue/green deck is nonexistent
If Inalla is in an appropriate zone as the trigger event occurs but leaves that zone, the ability won't do anything as it resolves
Even then, three colors is a lot to ask for, especially in the aggressive colors of the game, so I dont see this coming together
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