Popular Hearstone youtuber and streamer, Trump, made a video concerning his top 10 Witchwood cards. In the video, he talked about a deck that uses an otk combo involving Shudderwock. If you want to watch the video to see the combo explained by Trump, here’s the link: https://www.youtube.com/watch?v=RyPyEx0vtbg.
Combo:
You play Lifedrinker, Saronite Chain Gang, and Grumble, Worldshaker on the turns leading up to your Shudderwock. Also on the turns leading up to your Shudderwock you have to get a Murmuring Elemental elemental in your hand to cost 1 mana. We can do this two ways: firstly we can play a Grumble, Worldshaker with a Murmuring Elemental onboard or, we can play a Fire Plume Harbinger with a Murmuring Elemental in hand. On turn 10 you play your Murmuring Elemental and then your Shudderwock. What will happen is that you summon another copy of your Shudderwock (Through the Saronite Chain Gang) than cast Lifedrinker‘s ability and then add the Shudderwock back to your hand because of Grumble, Worldshaker. The next turn you can play 10 Shudderwock to deal 30 damage to the enemy hero and restore 30 health to yours. We play the one cost Murmuring Elemental so when we play Shudderwock we are guarnteed a 1 cost Shudderwock and/or multiple Shudderwocks with Bonemare buffs on them.