Absorbing Man Adagia, Windswept Bastion Adaptive Training Post Artificer Class Ashad, the Lone Cyberman Ashnod the Uncaring Auton Soldier Awaken the Maelstrom Banish into Fable Battle for Bretagard Breeches, the Blastmaker Brenard, Ginger Sculptor Brudiclad, Telchor Engineer Cabaretti Confluence Chrome Dome Cogwork Assembler Copy Artifact Court of Vantress Curie, Emergent Intelligence Cursed Mirror Cursed Recording Cybermen Squadron Dermotaxi Dino DNA Dollhouse of Horrors Donatello, Gadget Master Drafna, Founder of Lat-Nam Duplication Device Echo Storm Esoteric Duplicator Espers to Magicite Eternal Dominion Ether Faerie Artisans Feldon of the Third Path Fin Fang Foom Follow the Bodies Gleeful Sabotage Goblin Glasswright Grist, the Plague Swarm Grub's Command Hatut Zeraze Strike Force Hulking Metamorph Imposter Mech Improvised Arsenal Impulsive Pilferer Iron Man, Bleeding Edge Isochron Scepter Jin-Gitaxias, Progress Tyrant Joo Dee, One of Many Kurkesh, Onakke Ancient Lazav, Wearer of Faces Leonardo da Vinci Lorehold Archivist Machine God's Effigy March of Progress Masterful Replication Mechanized Production Mendicant Core, Guidelight Mica, Reader of Ruins Mimic Vat Mindlink Mech Mine Excavation Mirage Mirror Mirage Mockery Mirror of the Forebears Mirrormade Mirrorworks Mishra, Eminent One Mizzium Transreliquat Molten Duplication Nexus of Becoming

Interesting to see the additional cost of sacrificing an an island - what on earth happened in playtesting that people thought that cost was too high
(2022-10-14) In the Commander variant, a meld card's color identity is determined only by the mana costs and mana symbols in the rules text of its front face
So, since he sacrificed an entire race basically for power, what better way to honor him than to literally give him the text of the card Sacrifice