I am quite against the introduction of trade and exchange in this game, but I want the leader of the alliance could influence the progress of the members.
Need add a special drop (from titans and war) for the alliance (separate from the individual drop) and a separate box for this drop.
Only the leader of the alliance will have access to this alliance box.
The leader can choose the drop items from the box and give it to the members who need it to upgrade.
in the future, you can add special big events of the alliance, the reward of such an event can be a big alliance drop, mb special hero, mb special buff for war …
I apologize for my translation,
and thank you.