the hazmat-kage deck has been my favorite deck to play since it existed. theres not alot you can do to stop whats happening and tech wise theres alot you can do to ensure you get to go off with a bang. The obvious core is Hazmat-Luke Cage and Wong to go off all the way. your emergency plan is gambit mystique to try and save face and sneak out a win. Black widow, Debrii and scorpion can pre set up for the win in most cases there fodder and can be placed anywhere but there the best for the gameplan until turn 4 when the business starts. Sera, Absorbing man and Odin are your pocket "I need this to overcome problems" cards with Sera enabling Odin + hazmat or hazmat gambit absorbing man, you don't always have to do these combos but they can do things that can get you out of a mess sometimes. Lastly are your safety nets which are DD and invisible woman, they both are basically preemptive solutions to people stopping your Wong from going off. put him under invisible woman and you stop Enchantress and Rouge and since Wong drops on 4 turn 5 if you have DD out you can see the Cosmo happen and Aero him away, he's also at a difference to Aero power wise so its just GG at that point.
Sub wise iv already touched on DD + Aero and I think if you care enough you can squeeze in Hob which iv done and its not bad but its just not as strong as it could be at times where you could just be full leaning into the hazmat line. I think at this point in time Aero is too good to not just run in everything but you can get away with playing without her, if you think anything is weak here just sub her in if you have her because she's strong enough to where that's not a mistake anyway.