Talk:Aldebaran/@comment-5988986-20130122165117/@comment-1321146-20130122210609

I assume - based on experience in similar games - that the bonus is applied only to the attack power of the event specialist itself, or to the entire deck only if it is present in the deck (attacking the guardian).

None of your cards has any effect on your battles unless they are a part of the deck involved in the battle.

Other than that, I only used event specialists for the first event, so my knowledge and experience is quite limited, as I didn't really do any analyzing back then.