So my friend made a trial account to show me 'something' so I go over to him and he opens trade and puts in 4 level 79 healthstones, 3 from 1 person and 1 from another, even though they are all unique to only allow 1 of each.
Like this:
As you can see the health stones are unique to 1 and somehow he managed to get 3 of the same HS's from the same person. He then traded them to me and it instantly D/C'd me. We play on a RP server and so he went around Orgrimmar D/Cing random people by attempting to trade the 4 health stones.
I asked him how to do it and he said this.
1. Get into a raid group with a two warlocks
2. Have them both drop soul wells on top of eachother so they stack
3. Now hearth and right before the hearth finishes start spamming clicks on the stacked soul wells
4. If you did it right the server will place 2 + HS's inside your bag and trading it to anyone will result in them getting d/c'd
I havnt been able to replicate this so if anyone can please let me know and post any tips on how you did it!