Activate Mindslaver by paying 4, tapping and sacrificing it, causing you to gain control of target opponent during their next turn.
During the opponent's turn, activate Emergence Zone by paying 1, tapping and sacrificing it, allowing you to cast spells this turn as though they have flash.
Cast Lethal Vapors by paying 2.
As the opponent, activate Lethal Vapors by paying 0 an arbitrarily large number of times, causing that opponent to skip that many turns.
By seizing control of your opponent's mind with Mindslaver, you gain the agency to target their very own resources against them. Using Emergence Zone, you flash in Lethal Vapors during their controlled turn, exploiting its activation cost under your command. Because Lethal Vapors allows *any* player to activate its self-destruction ability—and you are currently making all the choices for that opponent—you can repeatedly activate it for zero mana to make them skip an arbitrarily large number of consecutive turns.