Spinneret is a Nightmare Unique dirk, hunted from The Spider King once you are at Threat 20 or higher. It is one of four ordinary drops on its list — 22.5% of the Uniques that boss gives up, about 1 in 4 — and every kill rolls the list twice. It is built on Sovereign Plaguewing Dirk — step 6 of the Plaguewing Dirk line, item level 80 and up.

It always rolls the same numbers: +24 Power, +12% Critical Damage, +14% Poison Damage, +11% Projectile Damage, +109% Poison Damage, +115% Projectile Damage and +42% Attack Speed.

On top of that it carries Spinneret — Your Special throws 2 more knives.

It is Nightmare Gate loot.

Wearing it hands you Fan of Knives.

“It throws lines, not knives. The difference arrives later.”