This clever loop turns your graveyard into an engine for limitless blue mana by uniting three distinct pieces. First, you need to imprint Khalni Gem into Myr Welder, allowing the construct to tap for two mana of any color just like the land-bouncing artifact itself. Once you enchant the welder with Freed from the Real, you can spend one of those generated mana to untap it, leaving you ahead on mana with every single cycle.