I can see what you doing but clash of clans is a medieval (more knight and dragon) (English) game not so much a Japanese empire game. I also think I know of a game that already has this in, But yeah anyway dark barracks do have the tendence to represent the Japanese empire like a minion
Lord (many people think for hero.) The the hog riders like shouguns with many skills soiI guess this could work but I prefer the name ninja but this is my opinion. Still the idea is great and it will completely change high lvl bases. I love this idea just needs Blaine small tweks

