It definitely needs some buffing; most if not all of gravities creatures are weak and this card is no exception. The is no reason to use this when much better options are available. want steady quanta? use fire spirit. want fast growth or high health? steam machine. want high initial attack? use lava golem. want something cheap? use forest spirit. what is the niche for graviton fire master? its a slower growing steam machine, or a higher health but off color fire spirit. It is only better because it has a little more health but if youre going to use two elements, why not use quinted spirits that are completely invulnerable?