The Cliffs of Wyrmrest - Wryz Saga I/Death Eater Lindwyrm
From Another Eden Wiki
Death Eater Lindwyrm is a hidden superboss unlocked after clearing the episode The Cliffs of Wyrmrest - Wryz Saga I.
To unlock it, go to the area "The Godspike" and watch the event. After the cutscene, the Boss will appear as a forced encounter randomly when passing through specific locations on the island, which resets whenever you change map.
The boss needs to be defeated a total of 4 times in 4 different battles.
