Hey all.
This is an exploit i posted last time i played on another xploit site.
So, if the christmas patch is as i remember people are able to make themselves into Snowmen using an item + snow.
Now as an old MT of a naxx guild i used to do this on knockback bosses.
Go to the desired spot to tank the boss.
Start tanking him
When ever you feel like it (usually when u have enough threat not to loose agro) you transform yourself into a Snowman
As a snowman you cannot move nor be moved
Result= No knockback or anything like that.
= Easier tanking =)
Hope it stil works =)