Ashiok, Wicked Manipulator According to WotC, well only get one planeswalker per set for the time being, so WOE only has Ashiok, Wicked Manipulator

Approach of the Second Sun Day of Judgment Defiant Strike Divine Gambit Ephemerate Gift of Estates Gods Willing Mana Tithe Revitalize Swords to Plowshares Teferis Protection Blue Suns Zenith Brainstorm Compulsive Research Counterspell Memory Lapse Minds Desire Negate Opt Strategic Planning Tezzerets Gambit Time Warp Whirlwind Denial Agonizing Remorse Crux of Fate Dark Ritual Demonic Tutor Doom Blade Duress Eliminate Inquisition of Kozilek Sign in Blood Tainted Pact Tendrils of Agony Village Rites Chaos Warp Claim the Firstborn Faithless Looting Grapeshot Increasing Vengeance Infuriate Lightning Bolt Mizzixs Mastery Shock Stone Rain Thrill of Possibility Urzas Rage Abundant Harvest Adventurous Impulse Channel Cultivate Harmonize Krosan Grip Natural Order Primal Command Regrowth Snakeskin Veil Weather the Storm Despark Electrolyze Growth Spiral Lightning Helix Putrefy Strixhaven: School of Mages releases April 23

Karakas opens you up not only to Wasteland but also to opposing Karakas legend ruling
Velomachus Lorehold Velomachus Lorehold gets a nod for being able to hit an opponent and cast a spell from your deck the turn it's played
Hopefully, Wizards has foreseen this problem and has a workaround in mind
Recur him, clone him, bounce him, flicker him Saw him in half if you have to