Diablo Stone
From Wowpedia
Diablo Stone teaches Mini Diablo <Lord of Terror>, a devil companion that follows the player around.
Contents |
Source
This item is available only to people who bought the Collector's Edition of World of Warcraft. Players will receive the item, along with the 
[Zergling Leash] and 
[Panda Collar], through the mail when logging on for the first time.
It used to be rewarded from the quest Welcome!
Battles
Magic: Cannot be dealt more than 50% of their maximum health in one attack.
+50% damage from 
-33% damage from 
| Level 1 | Level 2 | Level 4 |
|---|---|---|
  [Burn] |
  [Call Darkness] |
  [Weakness] |
| ▲▼ | ▲▼ | ▲▼ |
 [Blast of Hatred] |
  [Agony] |
 [Bone Prison] |
| Level 10 | Level 15 | Level 20 |
Notes
Mini Diablo is inspired by the titular villain of Blizzard's Diablo series of games (the name is literal; it's a very tiny version of the Lord of Terror). As its idle animation, it will occasionally breathe fire.
Patch changes
Patch 4.0.6 (2011-02-08): No longer rewarded from the quest Welcome!, it is now mailed to players.
Patch 3.0.3 (2008-11-04): Now Binds to Account, rather than Binds on Pickup.
