Hmm, I would say yea and no at the same time. Instead of adding this to current why not adding it to new egis; Levi, Ramuh, Shiva? We don't need new pets but using them as a summon to produce this effect could work just as well. All three share the same cooldown of 60s. Diamond Dust = Defense, Judgement Bolt = Attack DPS, Tidal Wave = Spell DPS.