The Heavy Crossbow of Eternity
Designed to be used with the Seeker Bolt of Feanor, this Crossbow is perfect against the terrible powers of Morgoth.
It is part of the trinity of the ultimate weapons. It increases your dexterity, constitution, stealth, infravision, speed and luck by 5. It makes you invisible. It sustains your strength, intelligence, wisdom, dexterity, constitution and charisma. It provides immunity to electricity. It provides immunity to paralysis. It provides resistance to blindness, confusion, chaos and disenchantment. It allows you to fly. It allows you to see invisible monsters. It allows you to sense the presence of orcs, trolls and evil beings. It slows your metabolism. It reflects bolts and arrows. It produces an anti-magic shell. It fires missiles with extra might. It fires missiles excessively fast. It cannot be harmed by acid, cold, lightning or fire.
It also grants the power of precognition like the Ring of Precognition
ToME Wiki