Four-mana, discard-twos are problematic because they are slow enough that your opponent could be empty-handed by the time it hits the battlefield
The decks also need to be fun to play, with a cohesive game plan, and some nifty reprints wouldnt hurt, either
T: Target creature gets +1/+2 until end of turn
Like any Magic set, the return to Eldraine also brings with it a host of new commanders to build decks around
If you havent played with or against Extort cards (whose reminder text does not count when determining Crypt Ghasts color identity), Extort is a sneakily powerful ability
According to Guinness World Records, the title of 'world's rarest trading card' is tied between the 1996 World Champion and MTG's Shichifukujin Dragon cards, in which only one specimen of each card exists