Card Rulings:Chevalier de Fleur

TCG Rulings

 * You can activate this effect during the damage step.
 * You can only use this effect during your turn.
 * You must Chain this effect directly to the activation of the Spell or Trap Card.
 * You cannot use this effect when your opponent activates the effect of one of their face-up Spell or Trap Cards.
 * If "Chevalier de Fleur"’s effect is used, and it is flipped face-down and face-up in the same turn, you can use its effect again.