Aside from Urza, almost any artifact-themed commander would love a free way to save their key combo pieces

Advanced Search Sets Random Syntax Alexios, Deimos of Kosmos Archwing Dragon Axebane Ferox Beifong's Bounty Hunters Bloodsworn Steward Cactusfolk Sureshot Cadric, Soul Kindler Caesar, Legion's Emperor Caldaia Guardian Canoptek Tomb Sentinel Captivating Crew Charging Cinderhorn Creepy Puppeteer Deathless Knight Dynaheir, Invoker Adept Embereth Paladin Embodiment of Fury Eumidian Wastewaker Exquisite Huntmaster Falkenrath Aristocrat Fathom Fleet Swordjack Fire-Field Ogre Fireflux Squad Fleetfoot Dancer Giant Solifuge Goblin Assault Team Goldnight Castigator Graywater's Fixer Hero of Oxid Ridge Hotheaded Giant Howling Galefang Iroh, Dragon of the West Jaded Sell-Sword Lava Hounds Lavaleaper Lightning Elemental Manaform Hellkite Mardu Siegebreaker Questing Beast Rampaging Raptor Rekindling Phoenix Saheeli, Radiant Creator Scorch Rider Shaman of the Great Hunt Sycorax Commander The Beamtown Bullies The Boulder, Ready to Rumble The Regalia Thundermane Dragon Ulvenwald Oddity Vaultbreaker Vengevine Wartime Protestors Wave of Rats Yarus, Roar of the Old Gods Zevlor, Elturel Exile omer, Marshal of Rohan

Its especially spicy with Scion of the Ur-Dragon, since it lets you cast the dragons that Scion tutors straight to the graveyard
He has an end step trigger that deals damage equal to his power if you played a land or cast a spell from anywhere other than your hand
First, let's look at the characters who appear as individual cards