mtg cards like ghostly prison (SLD-424) - Secret Lair Drop: (Showcase) Foil —Great Threshold of Monserkat inscription Similar cards to Ghostly Prison

Making a Treasure every time the Decadent Dragon attacks is similarly pleasant

Adding 20 cards to your deck seems like a massive drawback that would hamper the consistency of your deck yet Yorion got the ban hammer in several formats, and some Modern decks still tinker with 80 cards, even without the extra creature in their sideboard

If you manage to satisfy all four in the same turn, he transforms into an upgraded version that repeatedly generates life, cards, counters, and damage every upkeep while also discounting your spells

When Zoetic Glyph is put into a graveyard from the battlefield, discover 3

Modern Horizons will see more high level play than any Masters set has seen, which warrants a deep look into this new, high-powered format