Trust me when I say I tried every single thing you could to get a good Iron Fist team. Arthur and Iron fist are bros for life. Pattern that makes for the strongest Iron fist team goes as follows.
- Cornering expert in the front-this is so Ironfist doesn't have to lose a ton of health vs fully backed starter trying to get in. Ironfist's roll here is to back them with Rising Fang and to finish their plate with his high damage once they achieve for him the all important corner position that makes him the most threatening.
- Iron Fist set to Rising Fang- Iron Fist isn't a good anchor, but is an amazing assist. Put him second and put him in to finish combos and to take over in the corner once you achieve that spot.
- Beam coverage anchor character- Iron Fist needs someone to deal with beams as he wont always hold folks in the corner or be on screen of his own will. Once he's out he has to get in and beams ruin him due to his low air mobility and poor beam answers. Out of all the answers Arthur is the best. He is tied for Hawkeye for being the one of the best at horizontal projectile control and in Gold armor surpasses him with that 5 hits of durability plus piercing per dagger they do. Even without armor he still has 3 hits of durability per dagger allowing him a LOT of projectile nullification. Unlike Hawkeye though the daggers travel slow enough you can wave dash INSIDE of them...with Hawkeye's arrows they exit the screen so fast you often dont get to chase them in.
My team was Taskmaster (parabolic)/Ironfist (rising fang)/Arthur (daggers)
Out of all the point characters that corner I chose Taskmaster simply because his parabolic shot in the corner provided Iron Fist a way to lockdown incoming characters to start his pressure with. Plus Taskmaster's zoning benefits heavily from rising fang backing as did MODOK's. Have fun using this system to build Iron Fist teams. Its the best way to get him out there and enjoy him without suffering a ton of damage first. Plus that Rising Fang is a joy on teams to play with as is dark arthur anchor and his daggers. I'd often start Arthur and zone with him and gold armor out after taking their first so that I could enjoy Iron Fist backed by the ridiculous gold armor daggers.