Mulligans
General Mulligans
As a rule, you don't necessarily want the combo pieces in your hand so much as good early game control
The Combo:
Turn 1:
Glinda + some sort of defense or board clear before you cast her
Turn 2:
Siphon Soul into a full board of arcane tyrants thanks to glinda’s giving it echo
Hope your opponent t can’t board clear
So, this deck board clears and either ends in voidlords or the glinda combo.
Curse of weakness greatly improves corrupting mist and doomsayer.
Devilsaur egg adds more benefit to frequent board wipes, as well as supporting rat-catcher
Imo if you wanna go all in on the combo, running Bloodbloom isn’t bad. Happy Ghoul could also be a back up?