You get to set this up for no mana cost, and if you cant get a counter on it in another way, you can just adapt it and get at least one thing into play for free
Game Night: Free-for-All is a simple, fun and accessible way to learn how to play Magic or teach the game to friends and family
The second ability is a Solve ability, which looks for criteria to cause the Case to become solved at the next end step
Mizzix gains an experience counter every time you cast an instant or sorcery with mana value greater than the number of experience counters, and it gives you a discount on your instants and sorceries per experience counter it has

Release date: 2018-05-31 The Mimeoplasm Damia, Sage of Stone Vorosh, the Hunter Daretti, Scrap Savant Bosh, Iron Golem Feldon of the Third Path Kalemne, Disciple of Iroas Anya, Merciless Angel Gisela, Blade of Goldnight Atraxa, Praetors' Voice Ikra Shidiqi, the Usurper Ishai, Ojutai Dragonspeaker Reyhan, Last of the Abzan Artisan of Kozilek Abzan Falconer Angel of Serenity Arbiter of Knollridge Banishing Light Brave the Sands Cathars' Crusade Citadel Siege Crib Swap Custodi Soulbinders Dawnbreak Reclaimer Dawnglare Invoker Duelist's Heritage Elite Scaleguard Faith's Fetters Herald of the Host Jareth, Leonine Titan Kalemne's Captain Oreskos Explorer Orim's Thunder Orzhov Advokist Reveillark Sublime Exhalation Sun Titan Victory's Herald Deepglow Skate Disdainful Stroke Dreamborn Muse Fact or Fiction Grip of Phyresis Manifold Insights Memory Erosion Minds Aglow Mulldrifter Riddlekeeper Slipstream Eel Spell Crumple Tezzeret's Gambit Thrummingbird Treasure Cruise Vow of Flight Windfall Wonder Avatar of Woe Bane of the Living Buried Alive Butcher of Malakir Dark Hatchling Extractor Demon Festercreep Fleshbag Marauder Grave Pact Gravedigger Languish Living Death Mortivore Necroplasm Nezumi Graverobber Nezumi Graverobber

I could go on and on about each one and why, but that would be too much for a post like this