I keep coming across things that changed in 5.0 that voids past knowledge. Does that make sense? Example. The new 5.0 Shadow Trance Gives your Corruption spell a 5% chance to cause you to regain a Soul Shard.
Prior to the change it gave a free Shadow Bolt. If you didn’t click on your spell in the few seconds it was active you would lose that free Shadow Bold. This would dimish your dps because that was a chance to keep up your debuffs on the boss and of couse the dps from the Shadow Bolt.
Well DON’T immediately hit it now.
For a while I kept hitting it as soon as it was up to refresh my Haunt. I thought it was a free shard and would vanish when the Shadow Trance buff left. This would override existing ticks of the currently applied Haunt.
The Soul Shard doesn't vanish.
So...It was not necessarily the best use for the new Soul Shard. Depending on the situation you can use it for any available shard use.
This is the first time I have ever wished I could turn off Blizzard's Power Auras for a spell. Something about the aura coming on and the sound it makes still makes me want to USE IT IMMEDIATELY. Even after months of play.
Tip: Just because you have Shadow Trance doesn't mean you need to do anything yet.