There is a fun bug.
Switching Stances (Battle Stance, Berserk Stance, Defencive Stance) while u have Shadowmourne Equiped gives u a Soul Shard.
Same goes with Divine Storm on Paladins for example, just casting a DS, in Dalaran for example, without hitting any target makes u get a Soul Shard sometimes.
I just hope fixing this wont break SM completely again.
Best of luck. :D