Realization clicks swiftly after that. She's seen what happens when water and lightning mix, and her eyes widen ever so slightly before she gives Widowmaker a determined nod.

It takes restraint, letting them come. Letting their numbers build and swell and holding off. Waiting for just the right moment. Of course it's probably better, giving her a chance to start regaining some of her strength for one big surge.

Might wipe her reserves, but it might also be worth it.