"Arabian Nights", +los, +life, +!"Blossoming Sands", +!extort (2)
Whenever Nafs Asp deals damage to a player, that player loses 1 life at the beginning of their next draw step unless they pay before that draw step.
Players play a Magic subgame, using their libraries as their decks. Each player who doesn't win the subgame loses half their life, rounded up.
Gatherer works better in the Companion app!