Here are a few of the most interesting early reveals that sparked fans' interest
Even nastier when combined with a certain other black mana acceleration instant, an Animate Dead, and a Worldgorger Dragon

Kaza Wizard Tribal Kaza, Roil Chaser | Illustration by Ekaterina Burmak Commander (1) Planeswalkers (2) Kasmina, Enigmatic Mentor Ral, Storm Conduit Creatures (25) Aphetto Alchemist Apprentice Wizard Archmage Emeritus Azami, Lady of Scrolls Cyclone Summoner Docent of Perfection Dualcaster Mage Fatestitcher Goblin Electromancer Guttersnipe Harmonic Prodigy Information Dealer Laboratory Maniac Malevolent Hermit Manaform Hellkite Niv-Mizzet, Parun Nivix Guildmage Overwhelmed Apprentice Riptide Director Siren Stormtamer Stonybrook Banneret Storm-Kiln Artist Triskaidekaphile Veyran, Voice of Duality Vodalian Arcanist Instants (15) Abrade Brainstorm Comet Storm Cyclonic Rift Deflecting Swat Dramatic Reversal Goblin Wizardry Increasing Vengeance Invert // Invent Narset's Reversal Pongify Rapid Hybridization Reality Shift Refuse // Cooperate Swan Song Sorceries (16) Brass's Bounty Crackle with Power Doublecast Epic Experiment Expressive Iteration Expropriate Finale of Promise Finale of Revelation Invoke the Firemind Jaya's Immolating Inferno Mana Geyser Sea Gate Restoration Solve the Equation Soulfire Eruption Step Through Tasha's Hideous Laughter Enchantments (2) Artifacts (6) Arcane Signet Geistflame Reservoir Herald's Horn Isochron Scepter Pyromancer's Goggles Sol Ring Lands (33) Base Camp Desolate Lighthouse Island x13 Maze of Ith Minamo, School at Water's Edge Mountain x13 Mystic Sanctuary Reliquary Tower Shivan Reef I really like this hybrid style between wizard tribal and spellslinger decks

#9 hope they never stop doing this, its such a cute little bonus for artist/set collectors #10 If we want to get really technical, the 9 cards to make 1 piece was introduced in Crown Zenith Stella_ First english-speaking Zorua #11 If anyone could find high resolution picture of that Slowpoke, I would be so thankful
However, one glance at this card will explain why
Sure, you can tell me to just play Canadian Highlander instead, but having a commander that has all colors and then building around it has a great charm for me