I dont actually have a Voltron build, so this might be the one I pick
Alchemy has a feature that cards can be changedoften for power level reasonsfrom their original printings
Its focus on low-mana value spells made it slot perfectly into fast formats such as Modern, Vintage and Legacy
Features new characters, locations, items, and actions to expand gameplay possibilities and enhance collection variety
That segues neatly into the other reason Keranos is mostly inferior to planeswalkers - you get no control over drawing a card or doing three damage

| Commander | Jason Alt Commander (1) 1 Inniaz, the Gale Force Creatures (26) 1 Agent of Treachery 1 Aven Mindcensor 1 Boreas Charger 1 Bronze Bombshell 1 Draining Whelk 1 Emeria Angel 1 Grid Monitor 1 Ishai, Ojutai Dragonspeaker 1 Isperia the Inscrutable 1 Jubilant Skybonder 1 Kinjalli's Sunwing 1 Kira, Great Glass-Spinner 1 Loyal Drake 1 Master Thief 1 Meloku the Clouded Mirror 1 Mulldrifter 1 Nimble Obstructionist 1 Pride of the Clouds 1 Selfless Spirit 1 Sephara, Sky's Blade 1 Shacklegeist 1 Skycat Sovereign 1 Spawnbroker 1 Steel Golem 1 Taniwha 1 Thada Adel, Acquisitor Instants (8) 1 Arcane Denial 1 Benevolent Offering 1 Desertion 1 Dovin's Veto 1 Flawless Maneuver 1 Hindering Light 1 Reins of Power 1 Sudden Substitution Sorceries (7) 1 Cultural Exchange 1 Decree of Justice 1 Donate 1 Migratory Route 1 Rite of Replication 1 Spectral Procession 1 Stolen by the Fae Enchantments (12) 1 Cathars' Crusade 1 Embargo 1 Illusions of Grandeur 1 Leyline of Anticipation 1 Nine Lives 1 Puca's Mischief 1 Reconnaissance Mission 1 Statecraft 1 Thopter Spy Network 1 Thought Lash 1 Touch of the Eternal 1 Transcendence As always, this is a bit of a hybrid of different approaches and you can pick one or the other to commit to more as you play with the deck
