Mulligans
The concept of this deck is centered around using shudderblock which allows you to cast battlecry 3 times and in combination with Fyrakk the blazing, will end up being 60 mana worth of fire spells.
I have done 50+ damage to the opponent in a single turn with this combo and this is just one of the many win conditions this deck has to offer.
Other strong combo you can pull off is using Hagath the Fabled to get wish up a star or Nebula which then if triggered 3 times can fill board up with 8cost minions and or buff up deck/field.
Video Gameplay Breakdown:
https://youtu.be/mBiKyY-DS0U