This clever recursion engine relies on Skirge Familiar to act as your mana source, letting you pitch creature cards directly into the graveyard to generate black mana. As those cards hit the graveyard, Confessor chimes in to reward your discards with a steady stream of life. That newfound life immediately sparks Veinwitch Coven's triggered ability, allowing you to feed the {B} mana you just made back into the Coven to return that exact same creature right back to your hand—ready to be discarded all over again.