Trade, Sell items with your alliance members!

I think it’s great if someone who need some typical item and he not able to find it, I can sell this at him so add the possibility to  trade and  sell items such as armor, weapon etc with a special tower called for example  Trade Center!

I think is very useful if i don’t need this item so i can sell them !

 

I want to add the possibility to  donate gems to the alliance to upgrade the alliance tower ! (in % anyone want)