Px4 Storm is a Crit Damage buffing HG, sacrificing her allies’ Crit Rate as a cost.

While Px4 Storm’s buff potential is certainly quite decent, she does not bring any of the utility (defensive or otherwise) that other pos2/8 HGs provide. For example, she increases the Echelon’s DPS slightly more than P22, but doesn’t have any of the defensive utility that makes P22 such a staple pick.

Overall, Px4 Storm is not a bad buffer for RFs, but generally you’d prefer a Doll with more utility. As such, Px4 Storm is optional.

Check the mod priority guide: https://docs.google.com/spreadsheets/d/1ty239kyJbBs1sLhTo1JvSWuN0mIJsK1nwVdI6OLLtXo/view?rm=minimal

She is the storm that is approaching! Px4 comes through with her Neural Upgrade. An already popular HG albeit one who had fallen off in the meta with time, Px4 MOD does come with a pretty specific but potentially strong niche.

Px4’s new Skill 2, Motivating Bonus, applies a new status effect called ‘Fragility’ to all non-boss enemies as long as you meet the requirements. When enemies with this status take a critical hit, they take another instance of damage that’s equal to 3% of their remaining HP and goes straight through HP Shields, which is extremely strong. She also gives a very small teamwide damage bonus every time the team collectively scores 100 critical hits.

So what’s the catch? It’s those aforementioned requirements. Skill 2 only works when there are only at most 2 different doll types on the field, which severely hinders her team building capabilities if you want to make use of it. The standard RFHG teams at least work with this skill, but if the content needs more kinds of dolls, Px4’s Skill 2 simply won’t work. There’s also the issue of her Skill 1 conflicting with her Skill 2 as it decreases the team’s Crit Rate, but this can be offset by bringing other HGs that buff Crit Rate back up or simply disabling her Skill

When her conditions are fulfilled, Px4 will be a valuable asset to the team. Even then, she still works as a general buffer unit too. Her restrictions sadly make her not a complete slam dunk answer to all your problems, but she can be useful to have and will perform very well in the right moments. MOD2 is her most important upgrade, with MOD3 being totally unnecessary as her Speq is not important.