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 Houndmaster Grebmar, Blackrock Depths(19%).
Classic 1.15.9.69722
Spritecaster Cape
Binds when picked up
BackCloth
37 Armor
+4 Stamina
+4 Intellect
+5 Spirit
Requires Level 47
Equip: Increases damage and healing done by magical spells and effects by up to 14.
Sell Price: 99s 99c
Forever Beta 1.60.1.70009
This item does not exist in the Forever client.