Considering the new “rebalance” I find it more effective to switch from looting artifacts to offense, since the best attacking artifacts that I get fall into jewelry category. The ones that I value most are anti-tower and anti-air types, since the fighter planes are the only units that got buffed according to defenses and I expect them to be the main attack-drive force. So, are you ready to give up your “all resources looted” in favor of attack?