I see. Wondering if making small adjustments to fire tile height (like in the case of Fire Pillar) over slow intervals (when animations would play anyways?) if it would have a satisfying effect. Essentially Height and Color representing intensity of "environmental fire". From a post you made earlier it sounds like you could be grappling with that question already :P
In my experience I tended to use Earthquake in the exact same spot repeated times, it'd be neat if it caused a progressively deeper/bigger crater the more you use it in the same location.