In a no sphere grid challenge, you can do anything you want, but you can not touch the sphere grid at all.

I just beat the sinspawn(HARD) from getting really lucky. Ifrit blocked 3 attacks that would have killed him in a row so I got 2 overdrives off without even having 1 charged. Oh and I made it so gatta died, cuz I hate him. My aeons leveled up once, and ifrit have 907 HP, 20 str, 31 def, and Valefor has 794 or something HP, 19 str, and 29 defense I think. I have 9 games done on blitzball and 1 more until I have a dark matter.