As far as playing fogs goes, they can buy you entire extra turns, which for one mana
This will keep allies healthier and force an opponent to sink more into challenging you
As you have no control over how the dragon attacks (baring weird vehicle shenanigans or Maze of Iths - must make sure to keep priority after ability resolves), this can actually be fun for the table to do stuff like roll die
I like the idea of using Lazotep Sliver, Basal Sliver, Staff of Domination, and whatever other Slivers you can use to fill out the curve to combo
Frostcliff Siege is the reason to play the deck
Tataru Taru A big reason Tataru Taru lands this high in the ranking is its cost, because at two mana, this cute Final Fantasy card has a great chance of giving you lots of passive extra treasures and it's already replaced itself