Mulligans
General Mulligans
Try to get Hagatha to play on turn 8 and Bogshaper to get more minions. Witch's Cauldron can give more spells that can be played with Bogshaper.
Play Hagatha on turn 8:
Hagatha the WitchPlay a bunch of low cost minions to gain spells. Then play Bogshaper, play spells to draw more minions:
Bogshaper