>>53476178Curse, and to a lesser extent, Pain Split, can be pretty versatile with the idea of linked spirits and big fuckoff nails.
The default seems to be inflicting a severe wound on yourself and tanking the bleed-out type effect through ghost typing, while the opponent has no long term option but to escape.
I like to imagine Banette is also capable of skewering itself like a roasting pig to drop both itself and the opponent in one big go. Or taking a relatively smaller hit to a specific spot to potentially disable things. Such as giving a debilitating headache from a head shot, or disrupting a limb's use.