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	One Light in the Darkness (25 player)	10
	Defeat Yogg-Saron with the assistance of one or fewer Keepers in 25-player mode.
Criteria:  Yogg-Saron slain

Heroic: One Lights in the Darkness is a achievement gained by defeating  Yogg-Saron in the Heroic Difficulty with one or zero Keepers of Ulduar helping.

See Also

•  One Light in the Darkness (10 player)

External links

• Wowhead
• Thottbot
• DB MMO-Champion