In fact, he left during the design of the set, which will come up in a second

Full Decklist 4 Mountain 9 Plains Adarkar Wastes Aether Channeler Aetherize Agate Instigator Angel of the Ruins Arcane Signet Arthur, Marigold Knight Azorius Signet Battlefield Forge Bident of Thassa Blade Splicer Boros Signet Boss's Chauffeur Calamity of Cinders Cascade Bluffs Castle Ardenvale Chart a Course Circuit Mender Clifftop Retreat Cloudblazer Combat Celebrant Command Tower Curiosity Crafter Cut a Deal Devilish Valet Dusk // Dawn Echoing Assault Elspeth, Sun's Champion Evolving Wilds Exotic Orchard Fellwar Stone Ferrous Lake Fortune Teller's Talent Glacial Fortress Hanged Executioner Helm of the Host Illusory Ambusher Inferno Titan Inspiring Overseer Izzet Signet Jacked Rabbit Jazal Goldmane Junk Winder Loyal Warhound Luminous Broodmoth Martial Coup Mind Stone Murmuration Mystic Monastery Ornithopter of Paradise Path of Ancestry Path to Exile Plumecreed Escort Pollywog Prodigy Pull from Tomorrow Rapid Augmenter Rapid Hybridization Restoration Angel Rose Room Treasurer Rowdy Research Rugged Prairie Seachrome Coast Selfless Spirit Shield Broker Shivan Reef Siege-Gang Commander Skyclave Apparition Skycloud Expanse Sol Ring Solemn Simulacrum Spirited Companion Stolen by the Fae Storm of Souls Sulfur Falls Sun Titan Sunscorched Divide Temple of Enlightenment Temple of Epiphany Temple of Triumph Terramorphic Expanse Tetsuko Umezawa, Fugitive Thopter Engineer Thriving Bluff Thriving Heath Thriving Isle Time Wipe Zinnia, Valley's Voice Animated Army Expending is a big part of the red/green archetype in Bloomburrow, where you want to spend as much mana as possible

It truly feels like a love letter to Final Fantasy
The Peregrine Dynamo is a little more niche, and its limitation on not being able to copy a commanders ability keeps it from being too busted
He or she can play cards that make it hard to keep the cards balanced and he or she can do indirect things, like make you laugh, that might result in the cards falling