small swords

dagger of venom - permanent poison
incredibly sharp dagger named Mucro - bypass armor
banshee sickle - screams, makes enemies panic

large swords

sword of giant slaying - double damage against monsters of > 250 size (bastard sword)

axes

mammoth battle axe - enormous damage, may bounce enemies, very heavy, very difficult to hit

polearms

scythe of undeath - raises all killed humanoids as temporary zombies
