The Heavy Crossbow of Umbar (x6) (+18,+18)
A metal bow mounted on a wooden stock, with attached cocking mechanism. It
takes considerable time and strength to cock it and it's rather heavy.
However, it hurls its ammunition with incredible force. You can 'f'ire
with it after you 'w'ield it.
A great brazen arbalest with arms of gleaming steel, shooting quarrels
with speed and power for those brave enough to risk betrayal.
It can be activated for magic arrow (10d10) every 20+d20 turns if it
is being worn. It increases your strength and constitution by 2. It
provides resistance to electricity, light, dark and blindness. It
fires missiles with extra might. It aggravates nearby creatures. It
cannot be harmed by acid, cold, lightning or fire.
Level 60, Rarity 20, 20.0 lbs, 35000 Gold

(T.o.M.E. 2.3.5)