When a discard card is played that has immediate effect, the cards affected are immediately discarded. The only way to avoid the effect of this card is by playing an interrupt/negate card or healing card. An interrupt/negate card can only be played if you have initiative. Set aside enhancements cannot save characters from being discarded by this special ability. Discard cards that go into effect at the end of battle are not required to still be in play at the end of battle. However, if they are negated prior to the end of battle, the effect is avoided.
More: