You need to be on <10.3 sysNAND firmware version to downgrade. Or you can get a hardmod for around the same price as a ds game. @hundshamer on here and a few others are known for hardmods @vb_encryption_vb
So I used the cheats that were green in the doc, and I promoted my Kamui with a master seal at lv 20. Now my kamui is only gaining 1 exp per kill or any action for that matter. Is this because i cheated, or is this fairly normal in nohr?
If you are shadowbanned, you wouldn't have been able to battle someone at all. You'd see their player name and immediately it will ask you if you want to blacklist the player.