Doubling Season Doubling Season from Ravnica: City of Guilds hasn't made much of a splash in 60-card formats, but it goes in many different Commander decks of all varities, because it straight-up doubles things players care about, like loyalty counters on Planeswalkers, for example
It can easily eat away damage in the background with its Nightmare Aura ability and then be switched in to use its Dark Prism attack that has a base attack of 80 HP
Any "as [this artifact] enters the battlefield" or "[this artifact] enters the battlefield with" abilities of the artifact will also work
Overall, I give the art sleeves a thumbs up if you like the design, but apart from the convenience of ordering from StarCityGames, I don't really see a reason to buy the StarCityGames Double Mattes
Features RAIKOU (#050) Rare Rare A vibrantly illustrated card with unique abilities
Necrons (mono-black): We didn't want to make two decks that were the same three colors, or even one that was a two-color subset of another's color identity, so we decided not to make the Necrons a multicolor deck