This intricate loop turns Norman Osborn // Green Goblin into an engine for infinite deaths and storm by leveraging his back-face, which reduces the cost of spells cast from your graveyard and grants them mayhem. Because Ebondeath, Dracolich can be cast directly from the graveyard whenever another creature dies, you can repeatedly deploy the dragon for just {B}{B}. Each time Ebondeath enters, Angelic Sell-Sword triggers to generate a Mercenary token, providing the fodder needed for Phyrexian Altar to sacrifice both Ebondeath and the token for mana. This sacrifice generates the exact black mana required to recast Ebondeath from the graveyard, sustaining an endless cycle of creature deaths, entries, and sacrifices.