EY

If used offensively, then opponent's entire team may not use cards with the specified icon to attack or defend for the remainder of the battle. If used defensively, in reaction to an attack that contains the specified icon, then the attack is avoided. The card's duration is still for the remainder of the battle. Affected cards are not discarded and may be used for bluffing purposes.

Meta Rules
Meta #18 When a Special indicates a card with a specific icon then it includes cards with the specific icon OR cards that are being played along with a card with the specific icon.

Meta #44 When a card specifies what cards may (or may not) be used to defend it, this includes ALL cards used in the defense.

Meta #86 Power cards that are played as part of a Teamwork attack are still considered to be played as a part of the Teamwork attack (and all icons from the Teamwork card are considered to be a part of the attack). Special cards that are played after playing an Ally card are not considered as part of a Universe card attack. The icons do not join with the Special played.

Meta #111 All icons which appear on a card count as an icon, even if that aspect of the card is not being used.