The Metal Boomerang 'Glimdrir'

The Metal Boomerang 'Glimdrir' (5d5) (+15,+16)
A strange curved leaf-shaped piece of wood, its "forward" edges enhanced
with metal blades.
A powerful boomerang that makes one agile and fast, with a thirst for evil
and undead creatures, but demands its wielder not teleport, for fear of
desertion.
It increases your dexterity and speed by 3. It poisons your foes. It
strikes at undead with holy wrath. It fights against evil with holy
fury. It provides immunity to paralysis. It provides resistance to
acid, electricity, fire, cold and sound. It speeds your regenerative
powers. It prevents teleportation. It is cursed. It cannot be
harmed by acid, cold, lightning or fire.
Level 40, Rarity 20, 2.0 lbs, 60000 Gold

(T.o.M.E. 2.3.5)