Actions simultanées

Rituel
Révélez votre main. Chaque joueur peut choisir une carte non-terrain de votre main et lancer cette carte sans payer son cout de mana.

101.4. If multiple players would make choices and/or take actions at the same time, the active player (the player whose turn it is) makes any choices required, then the next player in turn order (usually the player seated to the active player's left) makes any choices required, followed by the remaining nonactive players in turn order. Then the actions happen simultaneously. This rule is often referred to as the "Active Player, Nonactive Player (APNAP) order" rule.Example: A card reads "Each player sacrifices a creature." First, the active player chooses a creature he or she controls. Then each of the nonactive players, in turn order, chooses a creature he or she controls. Then all creatures chosen this way are sacrificed simultaneously.

101.4a If an effect has each player choose a card in a hidden zone, such as his or her hand or library, those cards may remain face down as they're chosen. However, each player must clearly indicate which face-down card he or she is choosing.

101.4b A player knows the choices made by the previous players when he or she makes his or her choice, except as specified in 101.4a.

101.4c If a player would make more than one choice at the same time, the player makes the choices in the order written, or in the order he or she chooses if the choices aren't ordered.

101.4d If a choice made by a nonactive player causes the active player, or a different nonactive player earlier in the turn order, to have to make a choice, APNAP order is restarted for all outstanding choices.

608.2e Some spells and abilities have multiple steps or actions, denoted by separate sentences or clauses, that involve multiple players. In these cases, the choices for the first action are made in APNAP order, and then the first action is processed simultaneously. Then the choices for the second action are made in APNAP order, and then that action is processed simultaneously, and so on. See rule 101.4.

Rituel
Révélez votre main.  À commencer par vous, chaque joueur peut choisir une carte non-terrain de votre main et lancer cette carte sans payer son cout de mana.