What is the bast staff on shakes and fidget

i think it is ether the flash or the guitar hero's murderer weapon, it is more likely to be the flash because that is an all attributes thing... or is the best the staff of the swarm? lets just say that any purple/blue writing staff that doesn't make the noise of a regular staff is it (not silver soul harvester of the grim reaper or fiery flame staff of the dragon lord).