Punishing players for drawing cards is pretty sweet, and Underworld Dreams can definitely pile on the hurt
Blue Rite of Replication Confiscate Negate Refute Arcanis the Omnipotent Dictate of Kruphix Finale of Revelation Harbinger of the Tides River's Rebuke Sphinx of the Final Word Tempest Djinn Voracious Greatshark Clinquant Skymage Faebloom Trick 2 Mischievous Mystic 2 Brineborn Cutthroat Essence Scatter Micromancer Mocking Sprite 2 Spectral Sailor 2 Think Twice Tolarian Terror Witness Protection Into the Roil 4 Opt Chart a Course Dive Down Flashfreeze Fog Bank Gateway Sneak Mystical Teachings Shipwreck Dowser Unsummon Rite of Replication, Confiscate, and Negate are in traditional foil
Providing an amazing rate of seven cards for three mana, Timetwister leads to very broken plays
Abdel Adrian, Gorion's Ward Alora, Merry Thief Amber Gristle O'Maul Baeloth Barrityl, Entertainer Burakos, Party Leader Durnan of the Yawning Portal Ellyn Harbreeze, Busybody Erinis, Gloom Stalker Faceless One Gale, Waterdeep Prodigy Ganax, Astral Hunter Gut, True Soul Zealot Halsin, Emerald Archdruid Imoen, Mystic Trickster Jaheira, Friend of the Forest Karlach, Fury of Avernus Lae'zel, Vlaakith's Champion Livaan, Cultist of Tiamat Lulu, Loyal Hollyphant Rasaad yn Bashir Renari, Merchant of Marvels Safana, Calimport Cutthroat Sarevok, Deathbringer Shadowheart, Dark Justiciar Sivriss, Nightmare Speaker Skanos Dragonheart Vhal, Candlekeep Researcher Viconia, Drow Apostate Volo, Itinerant Scholar Wilson, Refined Grizzly Wyll, Blade of Frontiers Zellix, Sanity Flayer
Everyone is going to be color fixing and ramping and most of that will happen through mana rocks, if people dont have access to green
MTGNexus is the set designers paradise, with a great forum for discussing custom cards and proxies
