Make every NPC in the mists a Mirage, all with condition builds.. All of them work the same as a PvE mob, if you go near them, they will attack you.
Then put 100 of these dudes scattered throughout the mists...
On every ledge where we can't stand or access, put up a bunch of Sic Em Boonbeasts with unblockable attacks.
This would be Glorious.
Not to brag, but I put together a puzzle in 4 days and the box said 2-4 years.
Please allow team queue with rewards again at our own discretion