Mulligans
General Mulligans
You will need a few pieces of your combo, but I don't think keeping shudderwock in your opening hand will be best. Dealing with early aggression will be the hardest part, so a little bit of lifegain, taunts, and board clears will be important. If you can get a taunt up, mana tide is a good next card.
If face/swarm/zoo decks become more popular we might need another board clear.
This is a variant on the deck that TrumpSC (on youtube) theorycrafted on his channel.
You delay the game until you get shudderwock, before you cast shudderwock, you must use murmuring elemental, saronite, lifedrinker, and grumble. Then, when you use your shudderwock, it does 3 damage, and you gain 3 health, copies itself, and returns itself back to your hand and costs 1. On the following turn you cast shudderwock 10 times, gain 30 health and deal 30 damage.
If you get more than one lifedrinker off, great! If you get Zola and baleful banker off, great! If you get elise to go off before you get shudderwock, you have the best anti-fatigue deck.