By pairing Heartless Hidetsugu with City on Fire, you drastically rewrite the math of the game, turning a simple halving effect into lethal damage. Normally, Heartless Hidetsugu halves each player's life total, but the damage amplification from City on Fire triples that output to 150% of each opponent's life total, instantly wiping them out. Meanwhile, the humble Aura of Pariah redirects all that incoming damage away from you and onto a chosen creature instead, insulating you completely from the apocalyptic fallout and leaving you the last one standing.