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 Sunken Temple trash(0.04%).
Classic 1.15.9.69722
Slimescale Bracers
Binds when equipped
WristMail
129 Armor
+13 Spirit
+4 Intellect
+4 Stamina
Requires Level 44
Sell Price: 76s 24c
Forever Beta 1.60.1.70009
This item does not exist in the Forever client.