Suggestion, plain and simple. I think that vanaduke's scepter should be a sword that you can buy from brinks in return for many many almirian seals.
Other Vanaduke based equipment:
Vanaduke's mask as an equippable shield
vanaduke's cape as an accessory maybe
Here is one of my favorites: A new seraphynx sprite pod, of a nature sprite. kinda fits, doesn't it?
The shield and the accessory would be awesome. Would love to have that in the game. Also, how about a vanaduke knight be reworked/resking into a spiral knight patrol guard? Would be cool to see these guys walking around with spears instead of just guns and swords.
I should have posted this before, but a vanaduke aura.
An aura where Vanaduke's firey orb things float around you
The thing is that not only "Gaveyard" is graveyard on this forum ;)
I already suggested this but it also has the maulos mace suggested