Multi hit club for WHM would be neat or maybe some sort of shield. Would prefer to never have staves used on WHM at all, wish that the bonanza one wasn't a staff right now.
It might be interesting to have the weapons do a different damage type than the base normally does.
Yagrush was a stretch to imagine r15, but nyame/ Bunzi make DD WHM very achievable. Get ready to toss some of those equipsets that swap and commit to FT mainhand Yag. Multi-hit: check. 30-40k Mystic Boooooooooon! It's srsly more fun than moping around waiting to cure and perform triage for 2 hours of dyna, or Gaol C.
**edit** in addition? Themed shield similar to crystal bonanza shield would wrap up my ultimate WHM wishlist~ Cheers.