I didnt plan to do so far! XD

Basically, she wears in in villain AU (one day you will know what it is), but in cannon, she dosent use it much. Maybe some missions with you know who (AFO .3.)

Here is some interesting facts:
1) There is heating system in her suit. It helps Vivi better manipulate and generate wax. System can also be used for additional attaks (flashes and etc.)
2) Because of the system, her hair look more fluff and shorter.
3) Claws - an additional attribute. Viviana's quirk (change genes) is more for ranged and slow attacks. So claws help her to protect herself better with close attaks.
A couple of facts:
1) The suit has a built-in heating system. She helps Vivi better manage her wax and generate it better. Heat can also be used as additional attacks (flashes, etc.)
2) Because of the system above, her hair is more magnificent and shorter, otherwise it always hangs up to the ass.
3) Claws - an additional attribute. Viviana's Quirk (changing genes) is more for ranged attacks and to fight back, not only with wax - her claws help her out.

Perhaps I will make a reference separately as planned ...