Pain & Panic + Zack in Olympia is a devastating combo if he's guilted.
I don't think that's going to happen for a long, long time. I'm F2P, so slow jewel buildup = I rarely pull. I did so here, after seeing a bunch of talk about it being a good banner for getting SAB / dots. I don't have one single gacha medal with a Special Attack Bonus. Thus, my logic was "I'm never going to be lucky enough to get a premium medal, so I may as well try to get some good medals with SAB". That didn't pan out. :/
My keyblades are only +21, w/ Olympia at +22 and Divine Rose at +20 and no MoG.
I haven't been able to beat anything but the first the Adamantite challenges.
My current useful medals:
5* Minnie w/ DB2 (my only one)
5* DiZ w/ DB1
5* Aerith w/ DB1
5* Vivi w/ DB1
5* Judy & Nick w/ DB1
5* Cogsworth
5* KH Kairi
5* Lumiere
6* Lumiere w/ 3 dots
6* I.Aerith w/ AB2, 41%
6* HD Aqua w/ AB2
6* Old Hag w/ Paralysis+ & 2 dots
6* Hades w/ AB1 & 1 dot
6* KH2 King Mickey w/ AB2 & 5 dots
6* Wisdom Form Sora w/ AB1 & 2 dots
6* I. Yuffie w/ AB2, 39%
6* Stitch w/ AB2, 25%
6* Limit Form Sora w/ AB1
6* Hydra w/ 3 dots
6* Pain & Panic w/ Poison & 1 dot
6* Shadow w/ AB1, 5 dots
6* KH2 Sora Ver. A w/ 4 dots
6* Tifa w/ Sleep+ & 2 dots
6* The Queen
6* Wakka w/ AB1, 22%
6* Y.Herc w/ Paralysis, 21%
6* KH Cloud w/ AB2
6* Cerebus w/ AB1
6* Timeless River Pete