Spider-Man's Amazing friend lives up to her adjective. This Diva's dial has a dual TA granting her Wild Card in addition to Avengers free movement. Free move taxis are always a welcome addition to a team, helpful for early positioning or late repositioning without eating up actions.
Flight and Running Shot keep her mobile and work well with her ranged attack power options swapping back and forth between the crowd controlling Energy Explosion and damage penetrating Psychic Blast.
It's a little disappointing that she doesn't receive one click of 10 attack, maybe on her second or third spot for incentive to keep pushing. As it is, she'll want to push off her best defense to go mobile, giving opponents an easier time dealing with her. Here the Poison on her Fantastic Forces version is sorely missed - an incentive for ground pounders to stay away from her.
Don't push too much - she drops fast although Energy Absorption may help her rise like a Phoenix from the ashes. She might go out with a bang with an 11 av, but more likely it'll be a wimper of a swan song as that bare 15 Defense really signals "shoot me before I can Pulse Wave." In all her power set and team abilities make a nice package.
Speaking of packaging - the sculpt, representing her Perez/Busiek era Avengers membership, leaves a lot to be desired. In terms of complaints however, it's a minor one, and die-hards can swap it out with the Mutant Mayhem sculpt easily.
Her cost pushes the limit of a secondary attacker and she's not a World Champion tournament winner but with several fun (read: non-min/maxed) Keywords, Firestar should be a blast for themers to play. Competitive in WoS sealed events, this figure will also shine in games of 400+ points, where she has enough TAs to copy, and friends to taxi.