| Ancient Cornerstone Grimoire | |
|---|---|
 Full art (v) Some tomes of ancient lore are best left forgotten. | |
| Faction | Neutral |
| Type | Item |
| Tags | Off-Hand(1) |
| Rules | 2, ↓ → Put a Skeleton ally token with 1 ATK, 1 health, ferocity, and protector into play. At end of turn, destroy it. |
| Cost | 4 |
| Allowed | |
| Class | Druid, Mage, Priest, Warlock |
| Set | Onyxia Treasure |
| Number | 20/33 |
| Rarity | Rare |
| Artist | Clint Langley |
This article contains information from the Trading Card Game which is considered non-canon.