Cull the Weak

You are instructed to kill a unit by a spell another player controls, even if the spell instructs you to kill the unit (e.g., another player's Cull the Weak).

410.2.b. These actions can only be taken when a player is instructed to do so as the execution of an effect or during their specified occasion during the turn. Example: A player may Draw during the Draw Phase on their turn or when instructed to do so by a spell or ability. They can't choose to Draw at any other time. 411. Responsibility 411.1. Game Actions m