Fragment of the Hydra
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Fragment of the Hydra is a Map fragment dropped by Guardian of the Hydra in the Module Error: No results found for item using search term "page = Lair of the Hydra Map".
The fragment is one of four used to gain access to The Shaper's Realm via Map Device.
Like all the other T16 maps, it has a 100% drop chance upon killing the map's unique boss.