I saw this a couple days ago, and was trying to figure how it can be useful (?).
You said that you didn't try it in PvP, so maybe you want some kind of funky grinder for the Bronze arena or even Elders.
I toyed with your original version a bit, but it did not perform anywhere near to my satisfaction, so I modified it to the image below, while staying within the theme.
Hover over cards for details, click for permalink
5uk 5uk 5uk 5uk 5um 5um 5um 5um 5um 5um 5uo 5up 5up 5up 5ur 5us 5us 5us 5us 5v1 5vi 5vi 5vi 5vi 5vi 5vi 606 606 606 606 8ptDuring my initial trials with the original version, I always found myself wanting / needing more quanta.
The extra pendulum gives better odds of getting at least one (and, hopefully two) quanta sources on the draw. That way you have more of a chance to place a devourer on turn two. Increasing the amount of quanta generation earlier, helps in dealing with an early annoyance like an otyugh, pegusus, etc.
The steal cards, have obvious uses - throughout the entire game.
The nightmare card was a slot in the deck that I was trying to find something (anything), that would be handy throughout the game. I often played with it until I lost, then would switch in (believe it or not) a voodoo doll and played with that until I would again lose a game - switching back to the nightmare, etc. The doll was for offsetting some of the effects from fire storms, plagues, pandemonium's, etc., while the nightmare would be used to gain tempo in turn counts, or for that additional extra bit of health gain (for me, loss for the opponent) required to win the day, or survive another turn until I was able to finish off the opponent.
I ran fifty games against the Elder AI:
Wins: 45
Losses: 5
EM's: 5
Card Gain From Spins: 12
I tried some against Half-Bloods, but after winning one and losing nine, aborted that project (like I didn't expect it would be good there any ways...).
Then I went to the Bronze arena:
Wins: 30
Losses: 20
EM's: 8
Opponents with 1 HP: 2
Card Gain From Spin: 10 (with 1 being a rare)
Special Spin Attempts: 3 (nothing gained)
I don't think it will perform well in Silver arena, so am ending the experiment here.
The deck struggles against mono dark opponents, and I often felt helpless against rushes - particularly against rainbow and life decks. However, I did play hard, and tried to win every game. A good deal were won just a turn before I died.
Since you were able to acquire six 'Shard of Void' cards, I'd suggest either using them in an upped version, or with some type of duo deck configuration. In my experience, a classic mono dark deck performs better, and is more versatile.
