Breeding Troops.01
I thought of an idea for clash of clans to have a building which can make troops breed but that could be an unfair advantage to some, so only certain ones can breed with each other and they would be very expensive to upgrade because if they were cheap clash of clans would become to easy to play and it would not exactly be a strategy game anymore now would it.
These are the troops i thought could breed together:
Barbarian+Archer = Royal Assassin
Archer+Goblin = High Thief
gladiator+Goblin = Hit'n' run
Giant+goblin = Freak
Archer+Air balloon = Death From Above
and there could be many other that people could think of, i have many more but i could go down and be writing this for more than an hour with all of the combinations. As well as this would be a giant one that you would need TH10 and full storage's for To breed both heroes together to Create The Emperor! I have loads of ideas for future clash of clans and this is one of my favorites if i were to make a game like your this would be in my game but that would be copyright so i can'not that's why i would love for it to be in your game and others might like it as well. if u like m y idea please reply back to me i would really appreciate it.

