all background cards mtg If I Could Design Three for Magic: The Gathering The Most Valuable Lands In

My first step was to look at the cards I wanted in my 99

It encourages players to play Wizards, Fighters, Rogues, and Clerics, but also asks them to play them in equal proportion, which prevents them from hitting the required density for most tribal effects

This is a 5 mana card that essentially draws you two cards, so one card less than something like Jace's Ingenuity or Precognitive Perception, both of which were already playable

Haven of the Spirit Dragon works for any color dragon deck, and Cinder Glade benefits from having basic land types to work in conjunction with Game Trail

You do it from hand, so its not as telegraphed as, say, Blast Zone, and its much harder to interact with an activated ability than a Nature's Claim