Kefka, Ruler of Ruin buries opponents if they show a crack or two of weakness
You could tap down some lands to keep them from casting spells, I guess, but then they tap them in response and draw that mana for later anyway if they needed it
As Champions of Minas Tirith comes into play, you become a monarch, which is already off to a good start

Aberrant Mind Sorcerer Archaeomancer Ardent Elementalist Call to Mind Chakra Meditation Conciliator's Duelist Cormela, Glamour Thief Detect Intrusion Divergent Equation Extus, Oriq Overlord Fantastic Elasticity Flood of Recollection Forum Necroscribe Ghitu Amplifier Ghitu Chronicler Izzet Chronarch Kairi, the Swirling Sky Kishla Trawlers Living Lightning Lore Drakkis Maestros Confluence Mnemonic Wall Mystic Retrieval Narset's Reversal Obscura Charm Pillardrop Warden Pinnacle Monk Planeswalker's Mischief Possessed Skaab Press the Enemy Professor Zei, Anthropologist Psychic Theft Relearn Repository Skaab Returned Pastcaller Revolutionist Rewrite History Rootha, Mercurial Artist Saiba Syphoner Said // Done Salvager of Secrets Scholar of the Ages Scribe of the Mindful Shipwreck Dowser Sorceress's Schemes Spellkeeper Weird Spellpyre Phoenix Spider-Sense Stormchaser's Talent Strixhaven Tamiyo, Seasoned Scholar Tazeem Roilmage Tenacious Tomeseeker The Immortal Weapons The Mirari Conjecture Toph, Hardheaded Teacher Ulamog's Reclaimer Urabrask Uyo, Silent Prophet Vampire Charmseeker Very Cryptic Command Vexing Scuttler Volcanic Vision Zealous Lorecaster

You can also find the unique number choice in the bottom left-hand corner of each promo, which further differentiates each version
Its one of the most famous online MTG stores and was once a vanguard of Magics competitive scene