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Well as you know if you kill the first boss in a heroic you get saved (doh). So this will allow you to kill the first boss without being saved,
Pro's of this exploit:
You can hilt farm the instance while getting some emblems also.
Thats pretty much the only use, please tell me if you find more
Con's of this exploit:
Can't recieve loot from the boss.
Also pretty much all i can think off
How to do it:
Step 1:Farm PoS or w/e till you get to the first boss, then when the boss is gonna die you just leave the group, you'll be kicked from instance and go to where you were. Then you will recieve the emblem if they kill the monster
Step 2:?????
Step 3:Repeat till lovely hilt drops, or w/e else is useful for
Step 4:Profit
Frost badge theory
Well using the method above, i would think that if your doing your daily and your on the last boss and you leave when it's about to die, not only would you get frost badges but it will also count it as you not having done the daily.
I cant test this out because i've done the daily on all my toons so if someone can please test this out it would be awesome