SthUnlimted
When u say power depends on what it is u have in mind..U can have her from casandra kane (one of the best martial artist lvl) to Dr manhatan lvl..
Power: Self-Evolution into a Being of Time (Speed Force). Side-Effect: Apathy over Time Due to a Difference in Perspective in Time (Him/Her Think and Live essentially in a Bubble Separated from Everyone). Power: Spontaneity (Random Mode Activated) Side-Effect: One Second He/She is holding a Baton about to Block a Hit. Next? *Shing* Holding a Cat with the Powers of Blood Combustion.. (Gets hit and now Everyone is Covered in Guts and Gore. RIP Cat St. Tayor II, Beloved Father of the Blood Cats Clan. Last Known Location; Sleeping on Throne before he Teleported Unknown *Wink*).
SthUnlimted:The thing is, what I have planned for our MC to be a very selfish or villainous character. So a power that facilitates that transition is what I had in mind. I won't spoil it though. Still keep it coming, if your ideas are better than mine, then I will use them. And if we are talking about levels, then I plan to make her so that she would be a threat to the Justice League but not a high priority one.
this may be coming late author but why not give him/her the power of a beyonder from lord of the mysteries. let it be a gradual power up and no starting her from high tier? maybe one of the more unexplored beyonder powers so you can have some lee way. the greatest dc fic i’ve ever read had the mc be some neutral party with miracle invoker powers/mixed with amons angel of time/error pathway. another great dc fic that got dropped had the mc have d&d wizard powers that could technically do anything if the mc was willing to put in the effort. having pure hero characters is kinda boring same with villains and antiheroes(when done poorly). would like to see mc have just done his or own thing honestly. the best dc fic running atm has the mc basically act as a neutral party for the most part. i think focusing on world building and meaningful connections first should be more given priority first with these si fics as in the end of the day we want to be immersed in the lore and story. having the author tell us a flat story of progression where mc punches and kills villains or heroes wantonly is not only boring but generic. readers can’t really bother to care for some nameless or named mook who dies 3 chapters in after his or hers introduction.
A Meta Gene revolving around minor reality warping that'll grow with practice or a stressful situation arrives, for example getting snatched by Darkside's forces to become Granny Goodness's new Fury on the assembly line. It'll make for a great excuse for the Mc 'new' character when reunited with the hero's.