I like it. Nice mix of offense and support powers. Makes me want to get a Klarion.
From a thematic standpoint you are mixing themes though - Batgirl was on the second incarnation of the SSoV while the rest are from the most recent lineup. On the other hand you don't have much to choose from in Floor.
I went 2-1 today and took 599 points. I probably came in third.
1st team vs. Bat Ally (Nightwing, Anarky, AA Robin, Batwoman, and some feats)
Got wiped and took nothing. Stealth really hurt. Not to mention some bad rolls.
2nd team vs. Monster Keyword (Frankenstein, Zombie Spiderman, Devil Boy, Morbius, Moloid, and some feats)
I played Great Arena BFC and hit like 6 sets of doubles. Batgirl got a double perplex and a crit hit on Mobius for 5 damage and then 1 knockback damage. After that it was all downhill for the rest of his team. Lossed nothing took everything.
3rd team vs. Bat Enemy (2x Thug, Two-Face, Madhatter, Man Bat Assassin, Firefly, and some feats)
Took out all of the mastermind fodder and left Two-Face and Madhatter with noone to MM off to. Ganged up on them and took them out after a few turns. Lost nothing.
It was a fun team to play. In a bigger tournament putting on a few more figs might actually make this a good and very playable team.