When a move scores a critical hit, damage is calculated based on either the modified or unmodified attack and defense stats, whichever is more advantageous to the attacker. For example, an attacker who has used
Swords Dance and then makes a critical hit will get the benefit of the increased Attack, while one affected by
Charm will use its normal Attack score. Likewise, if the attacker uses
Screech on the foe and then makes a critical hit, it will still get the benefit of the decreased Defense like normal then count the critical hit into damage calculation. Another example would be if a team had
Light Screen or
Reflect on it and the attacker scored a critical on the team with the certain wall; the defense added by the wall would then be ignored, and the attacker would do double damage. However, it does not ignore modifiers caused by items or Abilities such as
Eviolite,
Defeatist, or
Slow Start, nor does it ignore the attack reduction caused by a
burn.