I use the last team, but with Bombot in front instead of Gorgotha. If you manage an entangle early on, you’ll get a nice little AoE boost out of your first cast which will speed things up a bit, while still contributing to charging the others. Even if you don’t, you can dispose of the Bombot and get an infernal king out, who is a bit faster at closing out the fight than just exploding back and forth for AoE, especially if they use a hero.
Maw is usually no problem for any of my explode chain teams unless he has an uninterruptible turn 1 mercy setup. This team I’ve had sylvanimora devoured and still easily won the fight, because the maw was entangled when he cast the devour, and the front spot still take the brunt of the damage from skull explodes, not to mention random cascades or the infernal king cast once you get him out.