RNG, not mg. Its randomly generated. Starting a new SH when all the sh knowledge and specials are about done is hell. 

Being able to torch some buildings and rebuild is way better, hence why it should be a thing. If possible. An elder without a clue upgraded the tower of odin. Sucks bad. 

A clan with 3trillion influence have no chance facing 80m marches. Yes, we get to face the 40m marches too, but once siege is begun, the order the marches attack is random. Suddenly theres 6 80m marches coming before thel 40m marches forcibg us to wait 1 hour till defending.