Gleipnir (5e Equipment)
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Weapon (Whip), Rare (Any lawful or neutral alignment)
Among the beasts, there was none so vicious as Fenrir, who vowed to swallow the sun and plunge the world to darkness. Fearful, the gods attempted to bind him. their efforts failed until the dwarves created an indestructible ribbon, thinner and stronger than any chain. Its ingredients were of six mystical, impossible things that were the sound of a cat's footfall, the beard of a woman, the roots of a mountain, the sinews of a bear, the breath of a fish, the spittle of a bird. Enemies bound by this material could never escape.
Reach+. This weapon adds 15 feet to your reach when you attack with it, as well as when determining your reach for opportunity attacks with it.
Everbind. When you successfully perform an attack with this weapon, the target creature must succeed a DC20 Dexterity saving throw or be restrained for their next 3 turns. Beast type creatures roll with disadvantage.
Anti-Beast. This weapon deals an extra damage die (1D4 slashing) against beast type creatures.