Can't wait for Keiki to unleash all those Mayumi Mk2s on Gensōkyō.
Jō (杖) is staff.
Tō (刀) is sword.
Oh, and the -yumi (弓) part in her name is bow.
Yeah, girl has three weapons in her name. So maybe it's a Swiss knife? At least, another bow-drawing character would be nice.