In theory, there could be decks that don't want Glasspool Mimic (ones that have almost no creatures), but even with just a handful of creatures worth copying in your deck, it's significantly better than the Island it will likely replace
Players who are allowed to look at a double-faced card may look at both faces. So, if a MDFC land is in any public zone (battlefield, graveyard, exile) you may look at both sides
Two free spells from your hand that cost 5 mana or less can swing any situation in your favour
We begin with perhaps the least flashy of the flashy new cards, Plumecreed Escort
Each of these cards is a Spacecraft from Magic: The Gathering | Star Trek , depicted in the form of a handy schematic outlining the ship's abilities
Pair this with any deck that already likes Cauldron Familiar or Mayhem Devil, and your opponent will not last long