Another random thought for a Gold Sink (not even sure I support it, but it's interesting enough to share):
Mason's HammerRepairs Doors/Barricades/Ladders/etc. x Amount per strike, but it costs Gold with every hit
The higher your multiplier,
the more expensive it is to use (to lessen farming/camping)
As a weapon, make it weak and short range, something like 19 swing, 10 thrust, 60 length or something, but fast like 100~speed.
I'd suggest giving it a low Str requirment to use, to encourage Peasants to go to work repairing their Lord's structures
-----------------------------------------------------------
As far as how much it repairs per hit and how much it costs, I don't know, but the idea would be it's a Gold sink, meaning most the time even if it helps you win, you will lose gold in favor of keeping the Multiplier for exp.
It would not bring doors/etc. back to life once killed, naturally. (Not that it could)
------------------------------------------------------
Edit:
Extra ThoughtsYou could require building supplies 'ammo', so there is a limit per life/round that you can Repair with the Hammer, and make the supplies undroppable (otherwise people would spam drop it). This would also require a devotion of at least 2 item slots to be able to repair objects & doors.
The supplies would not have the typical random maintenance, but rather the auto-repair option refills the supplies every time by the amount you consumed. If the supply ammo is 50/50, and you use up 25/50, you will be charged half the cost to refill it every single time.
This would replace the charge-per-hit idea, as the supplies would be consumed permanently unless refilled with "repair".Peasants could even be granted special, unbuyable Hammer/supplies that are high-capacity but cannot be refilled. (So instead of 50/50, peasants could have a special 1000/1000 version that eventually runs out.) You could even award a pittance of exp for using the Peasant's repairing supplies, so Peasants have something rewarding to do in their early levels.