that’s an honest question. i’ll give you my two cents, for whatever they are worth. deciding whether or not a character is overpowered in a game like this is way easier than it is in a game like destiny. characters typically fit into specific roles. if a toon has abilities that place them beyond a character in an assigned role’s capability to perform that same role, and it is not that character’s role, that character needs to be looked at. for instance, if an assassin character can tank more damage than a tank character, that assassin needs to be brought down.
another example would be if a character in an assigned role can perform its assigned role in a stronger way than other characters in an assigned role. for instance, if one assassin consistently can out dps every other assassin, that character needs to be looked at.
i know you said you’re still getting a feel for things, so you probably don’t have a ton of mutations unlocked for many characters yet. let me just give you a rundown of galilea once the mutations are unlocked. bare in mind, she is labeled as a territorial brawler. some other examples of territorial players would be marquis (sniper who pretty much camps and protects his area. if he gets close or doesnt have his team with him, he is dead). an example of a brawler player is attikus. attikus is good to assist in team fights. he is a scrappy character that just always seems to be great at irritating players.
galilea, with her base shield, can tank more dmg than a level one montana. montana is clearly a tank. boldur has a shield that can do the same thing, and he is clearly a tank. gali is not a tank. galilea, with her 35 pct attack speed mutation, can out dps any assassin in the game with just her primary attack. she is not an assassin.
now take someone like ghalt. ghalt is a controller/disruptor. he is labeled this because he has a great pull, and his traps are great. his stun is not the hardest thing in the world to land with the pull, but it does require some calculation. galilea is neither a controller, nor a disruptor, but with her mutations she can pull without even doing anything, while silencing, and has a point and click stun. she literally has the best crowd control in the entire game.
let’s look at ambra. she is classified as a healer. her sunspots can heal her allies, and she has some decent life steal. galilea can actually heal her allies, though not as well, and can actually heal herself as well. granted her abilities to do these things are nowhere near game breaking, the fact that she has them is crazy.
to top it off, at full health, galilea can actually shoot very strong projectiles, and does an incredible amount more dmg with her melee. it is staggering to think that any of this made if out of playtesting, but it did.
so, to summarize, galilea is by definition overpowered. she outperforms basically every character in every category, with the exception to healing and sniping, and she is perhaps slightly behind a few of the tanks in tanking.