This clever loop relies on Rukarumel, Biologist to rewrite the very nature of your deck, turning Promised Kannushi into a Sliver in addition to its other types so it can benefit from any shared synergies. Once Ashnod's Altar provides a steady stream of sacrifice fodder, Promised Kannushi's own soulshift ability triggers upon death, smoothly looping the spirit right back to your hand for just a single mana. To fuel this recursion indefinitely without running dry on colored mana, Chromatic Orrery steps in with its passive ability to let you spend your generic mana as though it were of any color.