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Could attract the attention of the Hive. Markings on the object match those on a terminal near the Cabal incursion.
― In-game description

A Wormsinger Rune is a consumable found by killing Hive on the Dreadnaught during patrols or strikes. It can be used to activate a terminal located in a room beneath the Patrol spawn point. Once activated, a group of Acolyte and Knight majors will appear. Once they have been defeated, Blahgrish will be summoned. He will drop a Wormfeeder Rune once defeated.