Weve seen effects like this before and is a reasonable price to pay, even better when you consider that this effect can stack in multiples
Forged in Stone Nahiri, the Lithomancer | Illustration by Eric Deschamps Commander (1) Creature (21) Containment Priest Whitemane Lion Grand Abolisher Kor Sanctifiers Mentor of the Meek Flickerwisp Hallowed Spiritkeeper Kemba, Kha Regent Silverblade Paladin Skyhunter Skirmisher Angelic Field Marshal Celestial Crusader Jazal Goldmane Geist-Honored Monk Requiem Angel Adarkar Valkyrie Sun Titan Sunblast Angel Twilight Shepherd Angel of the Dire Hour Serra Avatar Instant (10) Brave the Elements Condemn Afterlife Midnight Haunting Oblation Wing Shards Benevolent Offering Comeuppance Return to Dust White Sun's Zenith Sorcery (7) Gift of Estates Spectral Procession Fell the Mighty Nomads' Assembly Deploy to the Front Martial Coup Decree of Justice Enchantment (6) Armistice Mobilization Sacred Mesa Marshal's Anthem Cathars' Crusade True Conviction Artifact (16) Masterwork of Ingenuity Skullclamp Sol Ring Marble Diamond Mask of Memory Pearl Medallion Swiftfoot Boots Commander's Sphere Loxodon Warhammer Strata Scythe Sword of Vengeance Assault Suit Bonehoard Moonsilver Spear Argentum Armor Loreseeker's Stone Land (39) Arcane Lighthouse Drifting Meadow Emeria, the Sky Ruin Ghost Quarter Karoo Secluded Steppe Temple of the False God Plains x32 Commander, Themes, and Strategy Forged in Stone is the mono-white deck headed by the planeswalker Nahiri, the Lithomancer
It not only returns a creature for as cheap as 2 mana backed up with a 4/4 lifelinking creature, but it also gives lifelink to the returned creature, making it a game-ending threat against aggressive decks
Thats already card advantage, and your commander just stays on the table if your opponents dont have artifact removal, threatening all manor of infinite combos, and sometimes even attacked as a large threat
