Overview
Even now with her Neural Upgrade, she’s still pretty much a meme.
Her new Skill 2, Split Pain, increases the damage of her grenade based on the amount of HP she’s lost. This boost goes all the way up to a whopping 200% Damage boost if she’s at literally 1 link. To get here reasonably, Type 56-1 harms herself for 20% of her HP (effectively killing 1 link) each time she launches her grenade. Besides this, she also gets the usual array of stat buffs, including a pretty nice buff to her tiles, and her grenade can now crit. Sadly though, no ICD reduction, still stuck with an 8 second ICD.
It’s quite funny seeing her grenade go off while she’s at the point of death, delivering one hell of an explosion while she’s barely standing. But the usefulness doesn’t exactly go beyond that. It’s a novelty and a meme pick, but nothing you would use seriously. Do take note that she can also kill herself, meaning you would need to use something like Shield Fairy to keep her alive through her skill activation after getting her to 1 link.
If you do upgrade, then take her to MOD2 to actually enable her meme. Don’t bother with MOD3 unless you just seriously want the new art, as the Special Equipment is worse than a generic Focus Chip.