I'm guessing Warp Splinter in Bot.

I believe you can skip all other bosses in between -- for sure on normal mode.

Most of my experience with him is on Normal but I think its pretty much the same on Heroic which I've only done with a group of others a couple of times, not MBing yet.

You should be able to tank with Pally and keep everyone else together at max range to avoid warstomp. Group heal after arcane vollies. DPS him down. If your DPS is high enough you can probably ignore the Treants. Any that come close to your mage perhaps you can aoe down.

I'm just getting to the point where I'm going to go after him on heroics. I'm thinking the hard part will be all the trash getting to him and he'll be a piece of cake with my Pally+Shamanx4 team. I may be in for a rude awakening though, lol.