Two handed blunt weaponry has very few users these days. The only aparent ones are enforcers and those that do use 2hb there are mostly PvMers. What does usually show up for this type of weapon however is the area effect that is tied to it. For instance the seismic smash on "Bone Crusher" perkline. If you look at movies there is usually the relatively cheesy smash on the ground giving an earthquake like effect and im unfamiliar with other games but im pretty sure there is something like exactly that earthquake like effect incorporated into it.
I dont think its ever really been done for a weapon but i could imagine opening some perk actions tied to a certain weapon. Or otherwise a perkline could be created for Mp 2hb looking quite similar to Bone Crusher for Enforcers.
What im going to move towards is the effect of actually rather high damage from a 2hb weapon and more likely the semi large range effect of such a usually hughe weapon. Idea here would be from my perspective would be to actually have high damage that is relatively hard to land (so opposite of ur high AR idea) but its perk/side effect would be all the more easy to land.
To draw the picture, ur holding a 2 meter long shaft and a hell of a heavy hammerish kind of end. Now to direct that thing to a moving object is going to be hard, but u can instead of hitting the person just hit the ground its standing on and make the person loose its balance.
So the large damage lets say even bigger than the Xan 2hb weapon would be slow and powerfull with not that much AR so hard to land, but the side effects perks and procs do work.
The perks and procs i would have in mind would be the knockback action in area as it happens in Collector (maybe smaller knockback if they can actually alter that) area stuns, area init debuffs like they happen at every earthquake in the DB1/2 areas and the last part would be to with every hit you do with that weapon enlarge its AR like the procs on Kyr weapons to simulate the unstabalizing of your enemy due to the side effects of having such a weapon crush in the ground next to you, making u unbalanced. This AR would reach a reasonable amount to even hit evaders after for instance 5-10 side effects landing.
This would be cool because you would have to be able to survive for that amount of time to get that far so if u survive u deserve getting that AR. Next to that it would have a sort of crowd control effect in mass pvp due to its knockback and area stuns/debuffs. These perks/side effects would have to be checking low defence because its not directed at the target but the area say 35% evade close.
How do you like that idea Dance?