Been adjusting Negative for god knows how many times. Here is my most recent revision change:
Notes regarding this version compared to previous -
Optimizes the chance of drawing and playing Negative. Obviously, playing Psylocke or Zabu on 2 and then Negative on 3 is ideal. Negative is awkward because his play window is 3 but he has a cost of 4. If you drop Negative on 4, it's almost always an uphill climb especially since you will be at a big power disadvantage most of the time.
Some other ways to get Negative out in this deck - Jubilee replaces her draw with another card from the deck. This can let you summon Negative on 3 or 4 even if he is not in hand.
If you have Absorbing Man, playing Jubilee on 3 then Absorbing Man on 4 gives you 2 more chances to summon Negative on 4. However since you are using extra draws, you'll be reducing the amount of inverted cards anyway that can be pulled from the deck.
Once Negative is out -
This deck has way more tech cards then the previous versions, so use a reactionary play style. Some cool lines of play here include:
Zabu -> Shang + Absorbing Man - Doesn't require Negative. Lets you play Double Shang
Valkyrie -> Absorbing Man. Lets you dupe Valkyrie. This is normally pretty hard to do since it is a 9 energy play. However, if you have played Zabu earlier, Absorbing Man will be 3 cost - 2 if he is inverted. Valk will be 3 cost inverted or 5 normally. So it's definitely possible in this deck.
Bast -> Iron Man + Mystique is very good. Turns IM into at least 6 points + Doubling. You can win lanes just with this but generally, non-inverted Iron Man is kind of eeeeh
Zabu -> Mystique further drops 4 costs to -2...meaning Absorbing Man is now 2 Cost even without Inversion.
Jubilee -> Magik, can hail mary a bad location. Not recommended but sometimes, you're playing Jubs to hail mary Negative anyway. Might as well prep for a situation where Magik is pulled.
Skrull -> Mystique - If your opponent is using a lot of Ongoing, this can be devastating
Psylocke on 3 -> Magik. Gets Magik out early. Useful if you didn't draw Negative and can stretch a play window out by 1.
Be careful using Jubilee in this deck because many cards are tech choices. Pulling one at the wrong time hurts. Also, you can pull Magik accidentally stretching into Turn 7 when you don't want to.