Courtesy of Wizards of the Coast (WotC) and Commander’s Quarters, a strict upgrade to Darksteel Ingot arrives in Zendikar Rising — Skyclave Relic!
Continuing Zendikar Rising‘s theme of powerful artifacts, Skyclave Relic is a dream card and auto-include for most Commander decks. The indestructible mana rock is easily compared to Darksteel Ingot, but with a big upside:
For a six mana investment, you get three indestructible sources of mana that functionally ramp you from six mana up to nine on the following turn. The copies also count towards your total artifact count, which can be relevant in popular Commander decks like Urza, Lord High Artificer, Breya, Etherium Shaper, and many more.