This clever loop turns the massive mana potential of Arixmethes, Slumbering Isle into an endless green and blue treasure trove. By enchanting Arixmethes with Pemmin's Aura, you gain the ability to untap your creature-land for a single blue mana, while Fatestitcher stands ready to untap Arixmethes in return. Tapping Arixmethes for {G}{U} provides all the fuel needed to activate Fatestitcher and Pemmin's Aura, leaving you with a net surplus of green mana on every single iteration.