How many of these challenges have you already done?
I believe I have been in games where the following ones have happened (so multiplayer). Of course these are the easier ones so it isn't that much of an accomplishment. But I am planning on trying to get the others.
I am Iron Man and Now I'm Really Angry!
Getting Heart of Iron done in solo would require having side schemes, if using only the core set. Same for Ace Attorney.
Most of the basic THW/ATK ones seem to require running Tenacity.
The easiest ones are either I am Iron Man, or Warbird. They could be done without even trying to. Others require a specific planning or build to achieve in solo (Seven-Eight-Nine-Ten would seem to require Aggression; Combat Training + 3x One-Two Punch + 2x Tenacity + 1x Superhuman Strength)
I’ve done Now I’m Really Angry, Warbird, I am Iron Man, and Why Are You Hitting Yourself. Gonna have to print this out and start tracking it 