Constructive critism here...
The gravity deck you're working on won't do against FGs. Too many pack CC, like rewind, which will kill your flying titan idea fast. And since your deck is not as fast as a rushing deck, it won't pump out the damage fast enough before the FG you're fighting either gets his lock or outrushes you. I'm not trying to be mean here, just trying to be realisitic and help you avoid painful defeats.
As Art said, RoL/Hope deck is a popular choice due to its simplicity and cheap cost to build. Personally I favor RoL/Hope decks that run SoG because that card by itself opens up many EM victories and makes beating certain FG much easier (scorpio for instance). At some point you may get bored of it and try a rainbow, like CCYB, but before you do, I'd go with a RoL/Hope deck so you can get a better understanding of how FGs work and feel out how to play against them. CCYB is a great FG Rainbow deck, but it takes a certain finesse to use and an understaning of the FGs or you'll not have very much success with it.