4-2-3-1

[cracicot]

I'm not sure if this formation is legal or not but I've never seen anyone use it. It got 2 CDMs,a AML,AMR,AMC & a ST. Let me know if it's legal.

I used a 5-2-2-0-1 and found it was illegal. I still struggle to determine what is wrong with it. I am sure you have to have at least 2MC and any other A or D MC. I have seen 4-1-2-0-3 and it is not illegal. so how is 5-2-2-0-1 illegal?