Villains don't all need to be balanced. It depends on what their place in your world is. There is no way that Penguin is as capable as Batman. Penguin is a planner. Not a fighter.
The Punisher with his Battle Wagon.
Captain America with van/motorcycle.
Moon Knight with his toys.
The problem with Marvel, is the ones that were about their vehicles were usually toy tie-ins.
You don't think having your target suddenly being 6 inches tall and able to hide easier isn't a negative feature to the character with the shrinking attack?
There are several different archetypes available under F2P. A lot of costume pieces are locked until you buy the set for them or find them in play. You can try things on, tho.