31 chained together (I usually get 20, which I must admit, is really bad because my fingernails are about to fall off). It was hilarious, yet utterly useless that time, because (SPOILER)Cid only had 19000 HP left, I did 99999 damage, and I didn't even need help (SPOILER)from Reddas.

I was not fortunate enough to get a Black Hole, but I did get a Thunder-based attack, called Ark Blast. Or something similar. I've only seen Torrent, Cataclysm, and Inferno (despite finishing the game).