Its a bit fringe, but once youve collected the right amount of duplicate commons and uncommons, your vault will activate, and if opened, can reward you with six wildcards: one mythic rare, two rares, and three uncommons
Some have been better than others, but Dominaria United is bringing back one weve not seen outside of a Secret Lair promotion: Stained-Glass Treatment
This Esper enchantment creature is an incredibly potent package, representing an infinite mana outlet, the ability to serve as a static Underworld Breach for enchantments while in play, and best of all can be built a half dozen different ways, meaning that youre never quite sure what kind of deck youre facing down at your cEDH tables
If it's a creature card that shares a creature type with a creature you control, you may cast it without paying its mana cost
Collecting Strategy Most cards in this set are worth around $1.87 as singles