Communion Packed Orb Lightning and Thunder Strikes along with Air Elementals (With how the game uses gems now, you can get the most out of each Elemental summoning for 1 Gem a piece if you use Communion).

Also don't forget Cloud Trapeze as well as easy access to large #'s of Flying Units. The ability to Communion makes the lack of a pure 3 Fire less cumbersome to overcome, but unless you get lucky you will more than likely have to wait a little longer than turn 10 for Flaming Arrows (the benchmark for Marignon).