Mulligans
Fun deck. Try to get High Priest Thakal ASAP. There are cards that will help you draw him sooner. After that keep healing yourself. There is a decent amount of board clear elements in this deck. Use the legendary cards wisely. The idea of this deck is to survive longer than your opponent. Have fun.
Nice deck. Would probably replace call to adventure and barron geddon with self damage cards like Tortoise or Bloodclaw (especially the latter)
For this deck to work you need to draw High Priest Thakal very early. Call to adventure is an essential card for this deck since it draws out Thakal and gives it +2/+2. Baron Geddon can be changed.
I see. Maybe consider taking out Pyromancer for other draw options possibly such as Hidden Wisdom. But equally it depends on the meta as if there’s aggro big board decks everywhere pyro would be better