Apparition - Battles of Legend: Chapter 1 (BLC1)

If a face-up "HERO" monster(s) you control is destroyed by battle or card effect: Special Summon 1 Level 4 or lower "Vision HERO" monster from your Deck, then you can halve the original ATK/DEF of 1 monster your opponent controls. You can only activate 1 "Apparition" per turn.