I would say Ulamog is the second most competitively played behind Emrakul, with the Ceaseless Hunger defining the Standard format he was legal in for a while
Using substitute cards is optional, but in tournaments, players with double-faced cards must use either substitute cards or opaque card sleeves (or both)
Rarity Symbol: 2 stars Example Cards: Gengar EX, Machamp EX, Giovanni, Umbreon EX, Entei EX Just like shiny Pokmon in the games, Shiny cards in TCG Pocket feature Pokmon with alternate color schemes
Timey-Wimey The Timey-Wimey Doctor Who preconstructed MTG deck features the ninth, 10th, and 11th Doctors when the show was relaunched in 2005
Another example, Extremely Slow Zombie, has four different arts showing the zombie slowly reach out to grab you over the course of a full year
Also, if we were starting over, I would spend a little more time thinking through the creature types