# Solar Transformer Solar Transformer represents the kind of efficient utility creature that defines Modern Horizons' design philosophy. Collectors appreciate it as a solid uncommon that bridges casual and competitive play, offering flexible mana acceleration in green decks. The card's straightforward mechanics make it accessible while remaining genuinely useful rather than purely bulk filler. Most collectors view Modern Horizons 3 uncommons through a practical lens—these cards often see play in limited formats and constructed decks, making them worth keeping. The foil variant appeals to players building premium versions of their decks, though neither version commands significant collector attention. Solar Transformer sits comfortably in the middle tier of the set's uncommons: functional, relevant, and worth organizing rather than discarding.