This elegant little engine operates on a tight loop where Phyrexian Altar acts as the sacrificial outlet, turning Forsaken Miner into both the fuel and the recurring threat. Each time the Miner hits the graveyard, its death triggers Blood Artist to steadily drain away your opponent's life total while padding your own. To sustain the cycle, sacrificing the Miner conveniently counts as committing a crime against an opponent (since targeting an opponent's card in the graveyard is a crime, though here the Miner itself just needs *any* crime committed to trigger its return), allowing you to pay the black mana you just generated to bring it right back to the battlefield.