its a fun deck concept, wont be game-breaking, but will be fun to play and to tweak.
Here are some cards you could sub in or use to change the deck up, or throw in different angles:
Catapault: could be fun to have sitting there, maybe throwing a titan would win you a close game every now and then?
Gravity pull: scenario: deck against a fast rush, you can get set up, but are already down to 40 odd hp and will lose... grav pull on a titan buys you 50hp to get set up with
Chimera: similar to gravity pull but to be used in late game when all seems lost
Miracle: obvious reasons.
Keep coming up with deck ideas, like DarkGDude said, they will probably have been tried before, and do look around to make sure you arnt directly re-posting something, but you should keep trying out deckbuilding and having fun