About my second contribute here sad but yet again something of use.
Tried to find with various titles. Couldn't find anything related to this exploit.
First week:
1. Clear to Lich King, leave him only alive, or kill if your guild is fortunate enough. (which probably makes this useless)
2. Get some useless alt saved to that instance id and extend the raid period with him.
The next resets / week(s) after that:
3. (Extend the "useless alts" raid.)
4. Log with the useless alt collect the raid with him, get everyone inside the instance, go practice/kill him.
(which ofc. will make you saved.)
5. If you think you cant slay the bastard, fine... just disband the raid. Let someone that is not the "useless alt" gather the raid and push [reset all instances] with him. This will reset the instance and you can go clear it from the start!
6. ???
7. Frost Badges aka. Profit!
Guessing this technique wont work on HM since there are limited attempts there (which would make this a PROFITABLE THEORY!), lose 1 attempt = get saved to the instance. But on normal mode it's a charm!
Ps. Did not kill the circling valkyires.