Well, yeah, you do basically "track" it, remember, your goal was find and defeat Ultimecia, but the riddle has nothing to with that, as earlier said by Comet.
It isn't Tonberry King...
Hmmm, by only a simple vortex, you could actually mean - by using a simple vortex, which could count as a move, I would think Meteor or Ultima would fit into the "vortex" category...
Ruby Dragon?
Ultima Weapon? - his light pillar move?
Tell me if I'm on the right track





