Bansha is actually a very interesting character. Before she got banished, she was a human sorceress. Apparently she could conjure magic without a book, and is the only human character so far
Concept Picture - Blade Master Bansha by BobBricks on DeviantArt
LEGO Blade Master Bansha with Legs Minifigure | Brick Owl - LEGO Marketplace
LEGO Ninjago Ninja Swords Mini Fugur Blade Master Bansha – Ghost Legs from Stand 70738 with 2 Rare: Amazon.de: Toys & Games