For Wind... you already have Oberon, so not sure if there's any real improvements there. You could also go Ithaqua, but is that an upgrade from Zephyrus due to losing the debuff is very questionable. Wind Rami would make you faster, sure.Heph (-15% A Def) for Fire, or Belphegor (-12% B Atk/Def, -30% Rage Gauge) for Water. Both are pretty good choices.