Ancient Cornerstone Grimoire

Held In Off-hand Armor Miscellaneous Item

World of Warcraft Classic Armor Miscellaneous Item

Item Level 76

Binds when picked up

Held In Off-hand

+15 Intellect

+10 Stamina

+11 Spirit

Requires Level 60

Use: Summons a Skeleton that will protect you for 1 min. (15 Min Cooldown)

Dropped by: Onyxia

Drop Chance: 21.28%

Sell Price: 7 Gold

Source

Boss Drop

Dropped by Onyxia in Onyxia's Lair (35.07% drop chance).