mtg iconic masters booster box Magic: The Gathering - Featuring new artwork on many cards MTG: Iconic Masters Booster Display

Artifacts Okay, not actually a color, but I wanted to point out that artifacts already have carte blanche to do discard effects (a la Disrupting Scepter)

C Common Albion the Shrouded Dragon X DARK Level 8 [ DragonEffect ] ATK 2500 DEF 2000 This card's name becomes "Fallen of Albaz" while on the field or in the GY

Self-damage triggers have been seen in Gruul Commander colors before with Vrondiss, Rage of Ancients and serve as Ixalans dinosaurs signature mechanic enrage but Wayta allows you to safely and reliably activate the effect

Any "as [this permanent] enters" or "[this permanent] enters with" abilities of the chosen permanent will also work

We do know to expect Final Fantasy as our next big Universes Beyond set, as well as some possible Marvel products