Mulligans
General Mulligans
Try to mulligan for removal against aggro decks such as warlock zoo or token druid. In control matchups you wanna muligan for master's call and Jeppo Joybuzz. You want to avoid having any other minion in your opening hand, because you want to get it from Jeppeto Joybuzz with the mana decrease.
i have gone 12/22 from rank 5 to rank 3 in ranked. Most people do not know this deck and can therefore get outplayed really hard because of the surprise malygos and alexstrasza combo.