Not yet observed in the beta: the Forever client retains this item's record without its stats. Those are sent by the server in-game.Until someone records it, the Classic tooltip is shown below. Forever has reviewed every dungeon's loot, so changes are expected.
In Classic Era, dropped by Dire Maul East trash(9.9%), Guard Mol'dar, Dire Maul North(8.1%), Guard Fengus, Dire Maul North(13%), Guard Slip'kik, Dire Maul North(8.6%), Dire Maul North trash(9.9%) and Dire Maul West trash(9.9%).
Classic 1.15.9.69722
Robe of Combustion
Binds when picked up
ChestCloth
77 Armor
+17 Intellect
Requires Level 55
Equip: Increases damage done by Fire spells and effects by up to 26.
Sell Price: 1g 58s 14c
Forever Beta 1.60.1.70009
This item does not exist in the Forever client.