I found your first 10 man boss:
Culuthas - NPC - World of Warcraft
Average melee dmg is about 900-1000.
His Chain felfire is an instant kill, but takes 3 seconds to cast and it's pretty easy to LoS.
He also has an AoE that does about 100 dmg and does a knockback with a 30 yrd range.
He also sleeps random people.
One of the beautiful things about this boss, is that his spells cost A LOT of mana and he does not have a lot of mana.
22356 Health
3155 Mana
There's plenty of room to fight him. You only have to kill 5-6 non-elites to get plenty of room to kill him. I went ahead and did this for you:
I color coded everything for ya so it would make more sense(for me at least).
Black: Boss
White: Trash mobs. Kill these first
Red: Move Boss to this location
Yellow: The spot where Melee/Tank Stands.
Blue: The spot where Range/Healers Stand
Purple: Kite to each different yellow square
The easiest way to do this boss is LoS his Chain Felfire by kiting past each pole. What this will do is reset his cast timer, and he will usually try to recast it. But there were times(for me) where he went straight to melee. The melee hits are pretty easy to heal through in an avoidance set(high block/parry/dodge). Block dmg should only be about 700 dmg. But he does crit for about 1.8k so as long as you have 1400+ health you should be able to heal through the melee dmg. Force him to use Chain Felfire as much as possible and LoS it.
Feel free to tear this info up in any way you want to. Or you can try it a different way, w.e works for you
Here's some pictures of what the area looks like for the Blue area:
Outside:
Inside:
Take what you want from this
Good luck!
EDIT: He can also be stunned/Silenced. I have not tested it if he can be Slowed yet tho. Will do that now<3
EDIT: Alrighty, so he can be Stunned, Silenced, and Slowed. But He cannot be rooted in place. There ya go