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This page pertains to the Obsidian Mod. The items, NPCs, or features described in this article are from the Obsidian Mod, and cannot be found in standard Terraria.

 This information pertains to the pre-v1.0 Obsidian Mod. Its contents are outdated and do not
to versions 1.0 and newer.
The Mechanical Feather is a summoning item used to spawn the primary boss of the Obsidian Mod, the Dark Wyvern.


The item must be used at Night, revealing the following message:

A sinister cry echoes from the skies...

The Dark Wyvern will then spawn. If used during the Day, the following message will appear:

The evil corrupted Wyvern deny your call... Retry at night!

...and the Dark Wyvern will not spawn.