Schwarz's Seviper is a member of Plasma Gang who follows the commands of Schwarz. When N managed to rescue Braviary, Weiss' Zangoose and Schwarz's Seviper were summoned out to intimidate N. Plasma Gang realized that N had deceived them, so they intended to hurt him with Weiss' Zangoose and Schwarz's Seviper. Both the Pokémon seemed to hesitate a bit when N said he could free them as well from being abused by Plasma Gang but they were then forced to follow commands and attack N. N vowed that as long as Pokémon like Weiss' Zangoose and Schwarz's Seviper were being abused in the world by thugs, he'd continue fighting to free them. He wanted Weiss' Zangoose and Schwarz's Seviper live happily but at that time he wasn't able to help them.