This lethal loop turns a simple skeleton into a relentless drain engine by using Warren Soultrader as the ultimate sacrifice outlet to feed our economy. Every time Oathsworn Vampire hits the graveyard, Vein Ripper triggers to drain life away from our opponents while keeping our own health topped off with the life gain needed to cast Oathsworn Vampire right back out of the graveyard. Meanwhile, Edgar Markov lurks in the command zone or on the battlefield to passively churn out extra Vampire tokens via Eminence whenever we cast our spells, giving us the extra fodder we need to keep the Treasure-producing machinery humming.