Lost Wind (Secret) (SBCB-EN146) [Speed Duel: Battle City Box]

Target 1 face-up Special Summoned monster on the field; negate its effects, also its original ATK is halved. If a monster is Special Summoned from your opponent's Extra Deck, while this card is in your GY (except during the Damage Step): You can Set this card, but banish it when it leaves the field.