I would suggest to remove the borrowing functionality from the void mirror. I think it should stay a one man thing. It kills the skill and strategy to be able to borrow all gold from all you friends... You can come in with these 6 max ? gold troops and kill it all, not worth it imo.
Any thoughts ?
The max is 3 gold units, borrowed anyways. Plus your own depending on your gold cap and even then thats not enough to perfect a majority of levels