Went in to heroic for the first time Monday night, been putting it off in favor of badge grind. Wiped a couple times on the Champs, tried to kill the shammy first with no luck. Then I hero nuked the rogue first and it all got easier after that. Killed Era no problem. Got to phase 3 a couple times on the BK. Checked the combat log and put up shadow aura and popped hero in phase 2 which got me into phase 3 with hero still going. So it wasn't too bad. Oh and I got the achievement from pure dumb luck.

I've Had Worse - Defeat the Black Knight in the Trial of the Champion on Heroic Difficulty without any player in the group being hit by a ghoul explosion.
http://www.wowhead.com/?achievement=3804

Ran it again yesterday. No wipes but I lost shammys in phase 3 of BK. Again I nuked the rogue first, once you take him out the other two are cake no matter what combo you get. Have not seen paltress on heoric yet, so that I am sure will be entertaining.

So far no weapons for anyone, and the rifle dropped (the one I want on my original main)