Hearthpwn

Quote from GetchX >>

Wow, this card is nuts.  Basically has carried me as control priest so far.  5 mana board clear almost every time.  It's the card priest needed to survive early game aggro.  Duskbreaker was too inconsistent (if you didn't draw it and an activator, you were dead), but with Duskbreaker, Mass Hysteria and Psychic Scream, there's consistent board clears as needed.

Now priest just needs a finisher beyond the DK.  Currently I'm running fatigue quest priest which is working quite well (haven't lost yet, but games last 20 minutes so... haven't played too much), but obviously it is an insanely early meta.

 Unfortunately for me, the best finisher has been the old standard Mind Blast shenanigans.

Quote from Kovachut >>

Quote from Kovachut >>

Hmm. I am more than sure, that control/combo priest decks will include it in standard. This spell is a worse* Brawl, but a better Holy Nova. However I am really skeptical, that wild players will use it. There are other more powerful and reliable board clears in that format.

Note* - the outcome depends on the board state and on the RNG. Let's imagine how a big minion attacks a small one - obviously the big minion will survive. With Brawl there could be a 50% chance, that the small minion survives. However if we have 2 big minions and you play this spell, then there is a big chance that they will kill each other. Dunno, Supercollider is more controllable than this. I don't see a reason why a wild player would run this. They have Lightbombs, Dragonfire Potions, Excavated Evils/Duskbreakers (Netherspite Historian gives them more copies of this dragon).

Ok, I have a question to wild players:

Is this card worth running, when knowing that its effect will range from 0/10 to 10/10?

I can't believe, that this is one of the rares that I didn't open from packs. So I couldn't test it, but this is why I am curious to find out whether the risk of having an unreliable board clear is worth.

 I tried this card, it's either a brawl or a twisting nether, i really liked the card and i had high hopes for it and even with that im surprised. 

Having played around with it I think its a great card.  I know people are talking about the  RNG aspect of it, but there's still some thought that can go into it.  It also enables a psuedo rush to minions cast that turn or gives them a second attack if they survived their first attack.  As a mostly priest player I suspect this is going to be one of those cards people moan about.  It also causes stealthed minions to attack which is great for dealing the new spirits.

Posting this to both inform other players and to remind myself because I've messed it up too many times. 

The effect of this card resolves before any "on death" triggers, such as deathrattles or "whenever a minion dies" type effects.  This means you (or rather...I) can't drop a Spirit of the Dead alongside a Keleseth and a couple other friendly minions and play Mass Hysteria, because often the Spirit dies in the mix as well, and the 'on death' effect doesn't get checked/resolved until after Mass Hysteria has completed.