Yea... and it's annoying that your characters can't be at level 100. (lvl5 death).
Oh, so Omegas attacks actually get random when his HP is very low? That I never knew. But that may be because you normaly take him out with pretty strong attacks. If Omegas moves really get random in the end, then I guess you should use the hero-items in the end and not before the predicable Megidos.