Spell Hunter might be one of Hearthstone’s most interesting archetypes. The idea of playing a deck with no minions and just spells seems crazy in a game as board dominant as Hearthstone. However, Blizzard was able to pull it off quite well, and the much laughed at deck type is now a long time part of the meta.
The Boomsday Project didn’t do a whole lot for this deck. Secret Plan is the one major addition to the list, it gives you a bit of flexibility with your secrets and give you a good option for certain situations.