Fun concept: In truly dire circumstances, each senshi can open themselves to be a full channel for their element to eliminate a threat, leaving nothing but lingering traces of their powers behind
Mars is a fire bomb that dwindles to embers that take days to go out, Mercury a persistent mist. After her explosion, Jupiter is static that sparks between tree branches as though they are exposed wires. Neptune is and always has been the sea, Uranus sand in the wind.
But Venus is always left standing, because love endures.