Danny Rand and Lin Lie should Share iron fist.

They should set it up like Yin and Yang. Danny embodying the defensive “Immortal” Iron Fist. Being calmer and waxing poetic, which would be great to juxtapose Luke Cage in a heroes for hire show.

Lin would then be the “Living Weapon” part. Having a more aggressive fighting style. Might make him a good addition for the thunderbolts.

Then perhaps when one needs the full iron fist, the other can enter a meditative trance to give them their half.

I got the idea from one of the Firestorm runs. Where Ronnie and Jason were both. Ronnie and the fire powers and Jason had the elemental powers.