Iron Man Machine Gun

Machine Gun Ironman is about the interaction between Iron Man being able to attack four times in a turn with both Powered Gauntlets and his Arc Reactor on the board. Once you get down Combat Training and Quincarrier and at least one Rocket Boots along with the cards listed above the deck will begin to function.

Use the quincarrier resource to activate your boots and gain Ariel

Powered Gauntlet and pitch a card to Jarnbjorn-4 damage

Repeat with the second gauntlet, now it's 8 damage for two cards Iron man attack and Jarnbjorn, another 4 damaging making twelve damage for three cards

Ready Iron man and attack again, totaling 16 damage with a four card hand, meaning you can likely also afford other attack action cards, easily hitting more than 20 dpr.