This might be due to the raised tiles on the floor as they also cause pet pathing issues, your best bet is to tank him right on his stairs or at the base of one of the statues nearby. The boss's biggest challenge right now is that he occasionally despawns mid fight. Once you land just be sure you're not standing on bombs or a shockwave. If this player is you, there's nothing to do but enjoy the ride. He will also occasionally pick up a player and hurl them against one of the nearby columns. You'll see four trails on the ground coming from him in an X shape. He will cast Shockwave about every 20-30 seconds. He continually spawns bombs around the room. You only need to clear the trash on one side of him, the other side won't pull.
That said, you're probably on Wowhead to find out exactly that, so here's a quick rundown on the boss mechanics. There's a lot to be said for learning how to do a place without having someone tell you what the boss does. Comment by 53205This place was a blast to do with a group who had never been in here before.