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Dark Rune Thunderer
Race	Iron vrykul (Humanoid)
Level	82 Elite
Reaction	Alliance Horde
Location	Ulduar
See

Dark Rune Thunderer
Level: 82
Ulduar

This mob will put a nature damage increase debuff on your tank, after about 10 or so stacks your tank can get one shotted. Swapping tanks works, the paired mob in the pulls puts a reduced armor debuff on the tank.

External links

• Wowhead
• Thottbot
• WoWDB