Buy @ TCGplayer
When you set this scheme in motion, target opponent chooses self or others. If that player chooses self, the player sacrifices two creatures. If the player chooses others, each of your other opponents sacrifices a creature.
In a Supervillain Rumble game, the targeted player may still choose “others.” Each player who isn’t the active player or the targeted player will thus be affected.
The targeted player may choose “others” even if there are no others (because all of their teammates have lost the game, for example), or the archenemy’s other opponents can’t perform the resulting action.
The targeted player may choose “self” even if they can’t perform the resulting action. For example, a player targeted with Feed the Machine may choose “self” even if they control no creatures.