Another Alt-Power Taylor idea, though I'm not sure what trigger event could lead to this (maybe she gets lethally drunk and survives?):
When Taylor is sober, she just has a Thinker power to find alcoholic beverages within a couple of blocks, and analyze them for content, and what I guess would be called a Shaker power to conjure copies of them (container and all), or copies of drinks she's summoned previously that aren't in her current range (cold beer on tap
anywhere). When she does drink, the first thing that happens is that toxins do nothing other than make her drunk, and a toxin that wouldn't make her drunk just leaves her a bit buzzed.
Once she's at least buzzed, and preferably drunk, well, take this video (though she'd have a mask, and leave it on)
... and crank it up to eleven. She's a high-level combat/social Thinker with Brute and Mover powers that start small but escalate as she drinks. The PRT will eventually add a higher Shaker rating due to all the useful coincidences her power arranges for her (like
Shamrock's precog+telekinesis power that simulates luck), and a possible low-level Master rating if they notice how good she is at convincing vulnerable people to have a drink with her. Along with general Drunken Master stuff, she can pull off all the crazy bullshit things that drunk people
think they can.
With enough alcohol in her, she can take on Endbringers in hand-to-hand and 'win' (if the victory condition is 'Endbringer eventually zooms off to another part of the city, so they don't have to fight you'). She might also be able to talk Scion into drinking himself to 'death' (id est, to the point of losing cohesion on his remaining shards), if the author wants to go there.
A sufficiently high-level analytical Thinker (cough:Tattletale:cough) will notice that no matter how drunk she is, she's still very perceptive, aware, and capable of planning.
When she's hung over, her sight and hearing are greatly improved, able to hear the neighbor's alarm clock three houses away as if it were right next to her ear, or see in the dimmest room as if it were daylight. She can avoid a hangover as easily as most other people can, by drinking a few glasses of water before bed, or cure a hangover by drinking enough alcohol to get buzzed again (which doesn't take much, since she's a skinny teenaged girl).
The point of making her over-the-top powerful is that she's a cape that the Protectorate would normally want to pull out the red carpet to recruit, except that her power depends on getting obviously drunk, and she's fifteen when she first appears. It's very frustrating for the PRT, though Taylor gives no fucks.
EDIT: Something like the scene from the movie could happen early on, when she's breaking up a Merchant or ABB human trafficking operation (rescuing Emma?).