I have defeated the lich king with all 9 classes. Here is the decklist so that you can do it as well! Hope this helps!
PS: Copy this: AAEBAaToAgTgBYQXscIChsQCDbsDxQPbA/4D4wWvB9AH+AenCNOqAtO8ArPBAp3CAgA=
and then create a deck. It will ask you if you'd like to automatically build it. Happy hunting!
Custom Paladin2
Class: Paladin
Format: Wild
2x (1) Grimscale Chum
2x (1) Grimscale Oracle
2x (1) Hungry Crab
2x (1) Murloc Tidecaller
1x (1) Sir Finley Mrrgglton
2x (1) Vilefin Inquisitor
2x (2) Bluegill Warrior
2x (2) Hydrologist
2x (2) Murloc Tidehunter
2x (2) Rockpool Hunter
2x (3) Coldlight Oracle
2x (3) Coldlight Seer
2x (3) Murloc Warleader
1x (3) Primalfin Lookout
2x (4) Blessing of Kings
1x (4) Gentle Megasaur
1x (4) Old Murk-Eye
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