This was only our 2nd time running ICC together we started last week for the shits and giggles lol.

@Zenga -
Reprisal Tanked (Paladin)
We piled all the shamans underneath the boss.
Reprisal's Resto Shaman just mashed chain heal on his tank.
I made one of mine resto and he just spammed chain heal on himself to keep people around him up.
Then we just dps'd our asses off once 2 oozes finally came out I grabbed and kited the big Ooze away from the raid (riptiding my paladin as needed but otherwise continued spamming the chain heals).

When the 2nd set of oozes came out and merged together i taunted that big ooze away and merged it with my other one. When I was kiting those 2 big oozes I happened to run by the group as a single ooze spawned so it merged and caused the explosion. (Rotface was <10% life), so we barely missed the achievement. Hopefully next week I can post a video and show the achievement.