I’m just 2 hours into the game so I’m not aware if anything changes for her in the future, but as of the moment you get her, I can’t figure out what role she’s supposed to fill.
She looks like a support/dps hybrid with her grenade range passive (so grenades?), ability to get to high ground (so sniper? But Dux already fills that role) and CC (taunt, root etc) (so support? But she doesn’t get much HP so taunt feels a bit stupid)