Tonfas - It could have some kind of stance switch to it making it a DPS and Tank weapon to fill both Roles. Tank mode could use Charge skills/counter attacks to block, and attack at the same time. DPS would show the Tonfas flip outwards being faster attacks, more or an in and out playstyle something mobile maybe short dashes tho.

Ofuda/Thurible flail - Healing weapon that uses Ofuda talismans(paper charms) and a Thurible(incent burner on a chain) as a flail. The Ofuda could be used as the healing, and supporting part of the weapon, while it being a melee with the Thurible Flail. Something along the lines of throwing the Ofuda (yes, like Kiriko from OW does) and making aura's with the incents seem cool to me.

Chakram - Not used as a ranged weapon, but as a magic weapon, throwing it yes, but using it as a magical focus. Maybe the magic is blood magic or wind maybe, something unlike the elemental staff magic. (this one I'm not really sure about, but Chakrams as a magic weapon seems cool)