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 Ras Frostwhisper, Scholomance(15%).
Classic 1.15.9.69722
Maelstrom Leggings
Binds when picked up
LegsMail
320 Armor
+10 Spirit
+20 Stamina
+20 Intellect
Requires Level 57
Equip: Increases healing done by spells and effects by up to 13.
Sell Price: 3g 13s 18c
Forever Beta 1.60.1.70009
This item does not exist in the Forever client.