skadi takes lots and lots and lots of practice to master, and even then its very easy to wipe. with the move-forward method its really just avoiding the schmears of frost he lays down, and moving forward at a good speed -- keep group close together, have taunts on easy to access buttons so you can grab aggro off (mods that show you when a party member has aggro is also very useful; pitbull and grid both support this). spam drink when you can, you get 3-4 secs in between each wave to drink up if you are less than 80% mana.

i found it slightly easier just to gather 5 harpoons, reset skadi, then run to the end and have one guy run, aggro him, and run back (meanwhile magma totems are down and my pally is consecrating). it still takes a lot of practice to master this method, but the fight goes by a lot faster. the hardest part here is when he lands, you have to tank him with your tank while killing any adds that are up, and simultaneously rotate your shamans and keep the tank far enough away from the dps so he doesn't ww them. Remember, when he is about halfway between you and the dps you have to taunt him, and he'll ww slowly back (timing is critical in everything on this fight).

skadi is just one of those fights where one single mistake will likely wipe you. not taunting in time, healing too early, dpsing before tank has aggro, LOS issues, etc. once you get good at it its a lot easier, but imo definitely not worth farming -- I killed him last week every day for 7 days (got it down to 1 shot by the end) and had 0 mounts. said screw it and not running it again.