Mulligans
Could´nt find Moonlit Guidance in the deck builder. I´d swap Guess the Weight with Moonlit Guidance. Just ramp up attack power. Complete the quest and use Mark of the Spikeshell on Guff. If you´re a real champ then save your Warden´s Insight to refresh your manacrystals and put the extra copy of Guff down at the same turn.