WorldGuard MobDamage Flags adds two flags to WorldGuard: mob-damage-allow and mob-damage-deny .
mob-damage-deny can be set to one or multiple mobs that don't receive any damage (except from ops).
mob-damage-allow can be used to reenable the damage for these mobs in child regions or for whitelisting.
For a list of the mob types my plugin supports click here.
This mod requires WorldGuard Custom Flags and (of course) WorldGuard.
/region flag city mob-damage-deny villager
blocks any incoming damage to villagers.
/region flag city mob-damage-deny any
blocks any incoming damage to any mob
/region flag city mob-damage-allow zombie, skeleton, creeper, spider, enderman
reenables the damage to zombies, skeletons, creepers and enderman in the region.
Some other useful WorldGuard Custom Flags plugins
If you have problems with this plugin read the F.A.Q.. If this did not help you, you can receive help here.