GameSpot has posted an article from the current E3 with some excellent insight into the upcoming Zul'Aman instance!

Zul'Aman is a smaller raid dungeon that's better suited for 10-character parties than the full-on 25-character raids that some of the game's larger dungeons demand. Because the dungeon will not require any keys or attunements to enter, the dungeon seems intended to be more accessible to players on tight schedules.

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