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 Gnomeregan trash(0.02%).
Classic 1.15.9.69722
Vibroblade
Binds when equipped
One-HandAxe
21 - 40 DamageSpeed 1.60
(19.1 damage per second)
Requires Level 25
Chance on hit: Punctures target's armor lowering it by 100.
Sell Price: 52s 88c
Forever Beta 1.60.1.70009
This item does not exist in the Forever client.