When you remove the last defense counter, battles are exiled and then cast transformed, but lands aren't cast
Additionally, if you're playing three colors, you'll really want to play all of your "color fixing." Any land, like a Maestros Theater or Jetmir's Garden, is going to help make things easier on your mana
Tunneling Geopede and Spitfire Lagac being three and four mana make them totally unreliable
People are going to say but Mystic Sanctuary doesnt draw a card, and thats where theyre wrong
You can drop them into battlecruiser-level games and theyll hold their own, and might even do so up the scale some
Faerie Mastermind Faerie Mastermind Ghostly Pilferer Thieving Skydiver Notion Thief System creatures that you'd normally include for their abilities regardless of their stats can be confidently included in this deck under the justification that they share the right creature type