Mulligans
A fun deck against the Lich King. The focus is on building a hand, not a board.
It is important to
– play two wild growths/jade blossoms and
– draw Spreading plague
before Frostmourne comes. Nourish helps you in the latter, while your taunt minions hold the Lich King off. (Second-rate bruiser is especially effective in that.)
When your first turn comes after Frostmourne, you play Spreading plague and buff your beetles up (Mark of the Lotus, Power of the wild, Evolving spores, Strongshell scavenger).
Do not use the Jade idol to shuffle copies in your deck! It is only for taking advantage of the synergy with jade blossoms and giving you a cheap golem for 1 mana.
Hadronox is not vital at all; I actually finished the Lich King off without its deathrattle effect.
Remember Ancient of war can also be 10/5 and give you some juice by Earthen scales!
Worked for me on 4th try. I added Living Mana instead of Hadronox and won by it. https://hsreplay.net/replay/CyCdNeEpVh5e7S7mkGeZZ9