Chief among its additions is Gin Ichimaru (Cacao Society Version)the ever-smiling Gin a purple tight-fitting garb and replacing his wakizashi Zanpakuto Shinso with a pair of daggers.

Source: https://gamerant.com/bleach-brave-souls-best-6-star-characters/

Dual Zanpakuto is a very rare occurrence in the Bleach series, but the reason behind this isn't related to the wielder's strengths or weaknesses.

Source: https://www.cbr.com/bleach-every-dual-zanpakuto-user-why-can-wield-explained/