myself and my team use these emporiums from time to time when we do we all set a amount to send example say 1 million defense each across a team is 150 million we use this with timing so we have emporium challenge and pvp on at same time and normally by working as a team who ever is holding can finish to collect why getting massive kills when doing this with your team you can get massive pvp when people attack and with guardians now increases your defense too my advice is use this to your advantage and work with your team .....as for attacking back your attacker why ? if your team is working together and they just crashed and burn on emporium then they will be rebuilding awhile ........also when defending make sure you layer your defense properly so your at your maxium defense! hope this help you all