Hey VanHelden.
Your deck looks currently like a wild mix of three elements, where you probably started with Gravity and then decided that Fire is a cool element too and added some fire-cards ...
Some highly recommended guidelines and tips for better deckbuilding can be found
here (
http://elementscommunity.org/forum/index.php/topic,3329.0.html)
A quick-guide for turning your starter-deck into a very effective "Aggro"-deck can be found
here (
http://elementscommunity.org/forum/index.php/topic,1190.0.html)
However, the last link is really for jumping into grinding lvl3-AI for cash as fast and effective as possible. If you enjoy just playing around with the cards the game offers for now, you should probably just read up in the first thread and then proceed to have (even more) fun with your deck at hand.
The main (specific) advice I would give for now is:
If you don't want to play a mono-deck, make a clear choice on which duo-deck you are going to play for now. Gravity + Earth AND Fire is not going to work very well, so you should choose Earth OR Fire as secondary element.
Good luck and give'em hell.