Plague might interfere with your antimatter, so I'd take it out.
Also, given that the scorpions are useless without nightfall,
in a 35 card deck you need more of them. So maybe also remove some poisons.
How is your quanta balance? Do you have enough of each element?
If not, I'd take out the antimatter and make it a
duo.
As defense you could then choose between Skull Buckler, Bone Wall or Dusk Mantel.
I guess you will often encounter Creature Control so I think Bone Wall will be best.
Don't forget that you have to bypass shields which you do by stealing them.
So try to balance steal and your own shields using experience. (This might lead you to not add your own shields, but I don't know).
If you make a duo, you can also cut out some poisons for more creatures like Spiders,Mummies or Vampires.
