Question: what are eidolon lures for?
Answer: Eidolon Lures are specialized Grineer machines found on the Plains of Eidolon. ... They also function as tethers for Eidolon Teralysts, Gantulysts and Hydrolysts once fully charged, preventing their teleportation and releasing Sentient Cores and Eidolon Shards once they are destroyed.