eldritch horror card sleeves Gamegenic Arkham Horror: The Game Investigator Art fitting Standard "Eldritch Horror" Complete Compatible Sleeve

But most Gruul decks in Commander have plenty of haste, and cards like Bitter Reunion are in Standard, so I can see this card making a new deck archetype

While this style is arguably even more divisive than the rainbow rares you'd find in the best Sun & Moon era sets, this card commands a little more value than your typical Zacian card

These can be sourced online or created by scanning existing cards

Dual type and Shiny

Making it impossible for your creatures to be targeted by your enemies, the Hexproof keyword provides protection, not just against instants and sorceries that would kill your minions, but against any and all types of interaction

While the Mastery Emporium doesnt let players pick every reward early, like packs or cards, its nonetheless the best of both worlds