Since the undead bleed poison shouldn't they be immune to poison as well? Also they should have an increased resistance to slashing and immunity to piercing (how can you pierce the empty space between bones?) but increased susceptibility to crushing damage. (Ouch! Those hammers really hurt!) The sentient undead (the Chosen) should have some willpower since they broke free of necromancers but the other two, Raised Ones and Faint Ones, apparently start with zero willpower.
