In order to achieve Vision, there were certain requirements that Alice wanted to hit regardless of the method.
As Gwen mentioned, it was a harmonization of herself to her surroundings.
The second requirement was for her to become a receptacle of information.
When using Void Flux as an inspiration, Alice wasn't necessarily thinking about the destructive potential.
Rather, it was the process in which she first constructed this attack.
To gather all energy from her surroundings.
One of her greatest benefits right now was how she could 'read' the strands of energy that other's couldn't.
As for the first method… There was something she tried in the past, something that Cayla warned her against.
Something unique to her.
[Oh no no, you are NOT doing that.] Cayla widened her eyes.
'Why not? I just gotta be careful right?' Alice grinned.
[Hell no! careful doesn't even come close to the risks associated with it!]