Each Magic: The Gathering - Star Trek Collector Booster is like its own universe to explore, including Rares and/or Mythics, Traditional Foils, and a Full-Art land
If all three cards you exile this way are creature and/or land cards, you won't be able to choose one of them to copy and cast
Orzhov Advokist What an interesting dilemma for some of your opponents
Light-Paws, Emperors Voice
What Lists Want Training Grounds Partner Option One Rograkh, Son of Rohgahh Overall, the number one deck that I think can gain from running Training Grounds is the partner pair of Rograkh, Son of Rohgahh and, of course, Thrasios, Triton Hero
Another MTG story article from Monday showed off Breaker of Creation, a creature with Annihilator 2, Hexproof from each color, and a bit of life gain