WUBRG can be hard to build around but the potential shenanigans can be hard to pass up
4/4 M 1726 Artist: Ryan Pancoast Captain America gets my vote for the best Marvel cards in this batch of spoilers

Agitator Ant Alela, Cunning Conqueror Besmirch Bhaal, Lord of Murder Bloodboil Sorcerer Bothersome Quasit Bowie Base One Catch of the Day (playtest) Coronation of Chaos Coveted Peacock Day of the Moon Death Kiss Disrupt Decorum Farid, Enterprising Salvager Fast Forward Fell Beast's Shriek Firkraag, Cunning Instigator Frenzied Gorespawn Geode Rager Glin, Dwarf Emissary Goblin Racketeer Grenzo, Havoc Raiser Havoc Eater Insufferable Balladeer Jeering Homunculus Kaima, the Fractured Calm Kang Dynasty Karazikar, the Eye Tyrant Killian, Decisive Mentor Kitt Kanto, Mayhem Diva Komainu Battle Armor Kros, Defense Contractor Laser Screwdriver Laurine, the Diversion Maestros Confluence Maeve, Insidious Singer Marisi, Breaker of the Coil Nelly Borca, Impulsive Accuser Oceanus Dragon Ood Sphere Popular Entertainer Puppet Master, String Puller Ransom Note Red Death, Shipwrecker Renegade Silent Seifer, Balamb Rival Slicer, Hired Muscle Sly Instigator Sontaran General Spectacular Showdown Take the Bait Taunt from the Rampart Taunting Kobold Taunting Sliver The Beamtown Bullies The Master, Mesmerist Undercity Vengeful Ancestor

Credit: Wizards of the Coast Zask, Skittering Swarmlord FromTheShire: Playing lands from your graveyard is a great effect, and there are a metric truckload of Insects these days, including some pretty good ones like Mazirek, Kraul Death Priest and Caustic Caterpillar that you're going to be real happy to cast over and over