As you come into Scholomance you see 4 Sceletal Mobs, kill em, in the next room where ther stairs go into 2 directions, you have to kill everything, and everyone. I dont quite remember if we killed the Ghost that is in the small tunnel in this room. The tunnel is under the place where the stairs go into 2 directions.
After you cleared the room (whether with or without the ghost in the tunnel), leave the instance, reset. Kill the 4 Sceletons, jump down, dont kille anything else - kill the ghost in the tunnel. There it was Formula : Lifesteal.
It worked for me on the first time. But of course there is this small chance that it was a random drop, however it didnt work for me on the 2nd and 3rd time but on the 4th it droped again.
Pity that you can only have 5 ID's per hour.
After you cleared the room (whether with or without the ghost in the tunnel), leave the instance, reset. Kill the 4 Sceletons, jump down, dont kille anything else - kill the ghost in the tunnel. There it was Formula : Lifesteal.
It worked for me on the first time. But of course there is this small chance that it was a random drop, however it didnt work for me on the 2nd and 3rd time but on the 4th it droped again.
Pity that you can only have 5 ID's per hour.