Originally Posted by
laplacedemon
That actually only sounds 'dynamic' and 'interesting', but what you're going to end up with is a standard raid boss.
Take Jin'rokh for example. You can throw the tank at a pillar (maybe this is not a good idea since you're giving the raid more dps but let's just play along), create lightning to follow someone, ionize the raid and call a storm. All of those abilities will have to have some sort of cooldown and the best way to use them will be on cooldown almost all the time. You can't change aggro mechanic or everyone would go for the healers and if you can't change aggro mechanic, you as a boss can't move either since you're practically leashed to the tank (or whoever has the most aggro on you). Best what you can do is to use mechanics on the worst player and hope they will play bad and cause a wipe. Rest is pretty much the same as what Jin'rokh does, except maybe in a different order.