I am guessing this idea was before the new version, but jut so you know it worked great for me, so far I tested against AI3 and the results so far are, 22 wins 1 loss.
My loss was by a deck out? Yes
The squid is too good. XD
I did have an issue with drawing more than 1 precognition ( 4one time ) HOWEVER after a few turns it pays off.
Fog is good, it won me a few games.
I do not have a rare weapon yet so I added another Nova, and I think I took out a dragon for something... idk.
Also I am thinking of running Phoenix like a few post above me said but idk just yet. I use to run, unupgraded phoenix rush with lava golems and I liked it because it allows me to basically run 2-3 defrags easy, but I cant really do that in this deck.
Also I prefer Vampire weapon over arsenic.
Arsenic swings for 2, and adds 1 poison. Vampire stiletto swings for 4 and heals for 4, a 4-8 HP swing.
Then next turn arsenic swings for 2 and adds a poison and poison will do 1. Vampire stiletto swings for 4 and heals 4.
In 2 turns Vampire stiletto has done 8 damage and healed for 8 in 2 turns. A 16 HP swing.
In 2 turns Arsenic has done 5 damage, only 5 HP swing.
Turn 3 Arsenic will have done 9 total, and Vampire stiletto will have done 12 and healed for 12.
Turn 4 Arsenic will have done 14 total, and Vampire stiletto will have done 16, and healed for 16 total.
Turn 5 arsenic will have done 20 total, and vampire stiletto will have done 20 total and healed for 20.
Turn 6 you start making up for the damage you lacked at the start, but you will die faster due to no healing.
Both of these weapons clash with one other card in the deck.
Vampire stiletto will do more starting damage and will only cost 1 darkness, while Arsenic will cost 2 death, and wont pay off for many turns.
Now I think the only real debate issue is those 2 Death worth more in this deck than that 1 darkness?
Edit/addition
Well 38 games won, and 2 losses with no rare weapons. Now I have a score of 500 so I can choose a rare weapon. A weapon helps this deck so much it is crazy, the only reason I lost to the AI3 squid deck is because of no weapon, I believe that either Arsenic or Vampire stiletto will raise the decks winning percentage.
Arsenic cost 2 and can make your water guy that poisons just useless at times, so I will most like choose Vampire power over Poison power.
Keep up the good deck building. 8)
Note: Second time I lost was not due to deck out, it was HP damage.