This is not a fully competitive deck (yet), but it does feel strong and it's super fun to play!
Me and JonahVeil have been tweaking with it since yesterday and we're getting close to a finished list that looks solid.
Currently hovering around
Masters 400 with this list.
For the mulligan, you ideally want a nice mix of early interaction with the board and card draw. For example, a combination of
Wisdom of the Elders,
Second Sight,
Torches,
Lightning Storm,
Rockslide and
Permafrost is a keep.
While playing this deck, you want to play
Calderan Cradle as soon as you can. Also, be wise with your removal and don't worry too much about taking early damage, cause this deck will usually win in the late game, sometimes with single digit points of life, but that the enemy can't finish off because nothing he plays stick on the board anymore.
To finish a game, either Dragons, Channels or Torches go face for the win.
UPDATE: Removed a single Cradle for a Knucklebones, to add yet another win-condition against decks that can exhaust your removal and go long or decks that have Banish for your Cradles (or both) like Xenan Control. Also a great wincon against Armory, which would be a pretty bad match-up otherwise, since we can't deal effectively with their weapons.