Guild Wars 2

hey guys just a quick question.

i want to make a berserker stat ascended backpack in mystic forge. i got the essence drop in fractals i have the 50 ectos i have the tokens and the SP items, which tier 6 item do i need to make it.
i heard its 250 vial of powerfull blood but would like some 1 to confirm this so i dont waste 30g on the wrong mats needed.

http://wiki.guildwars2.com/wiki/List_of_ascended_equipment

yes it’s called Book of Secrets: 250 powerful blood, 50 ectos, 40 crystals and condensed mists essence.

thanks very much