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.
Classic 1.15.9.69722
Mark of Hakkar
Binds when picked up
Finger
+7 Strength
+10 Stamina
Sell Price: 55s 42c
Forever Beta 1.60.1.70009
This item does not exist in the Forever client.