I was looking for an Action Replay code to remove the class number limitation in Shadow Dragon, and found that there wasn’t one (for the US version, at least.) Naturally, I made one myself! I wasn’t sure where to put this, I don’t know if FE Universe allows cheat codes? But anyways I wanted to share it with someone at least. Here’s the code (it sets the class limit for every class to be 14, which breaks the UI a little bit but should allow for full armies of one class.)
022662EC 0E0E0E0E
022662F0 0E0E0E0E
022662F4 0E0E0E0E