Could Sasha Waybright (Amphibia) Beat Bianca (Wednesday)

in a fight?

No, it is unlikely that Sasha Waybright (Amphibia) could beat Bianca (Wednesday) in a fight. Bianca is a skilled fighter and has a variety of weapons and gadgets at her disposal, while Sasha is a relatively inexperienced fighter and does not have access to the same resources.