Just got it maxxed on Scarlet Crusade, Realm First, Alliance side, Captncrunch :P
Took me about 22 Northrend Cards too do so, thats 132 Snowfall inks, 264 Icy Pigments, 66 Eternal Lifes.
Had a couple times where I didn't get a skill point from it. Was still a yellow skill and all. Just didn't like me. Good luck getting this maxxed. Spent around 23k gold too do it myself as my farming toon is still level 70.