Target 1 "HERO" monster you control; send it to the GY, also, after that, if it left the field by this effect, Special Summon 1 "Masked HERO" monster from your Extra Deck with the same Attribute that the sent monster had when it was on the field (its original Attribute, if face-down).
![Mask Change [RA04-EN142] Quarter Century Secret Rare](http://paradoxtcg.com/cdn/shop/files/627357.jpg?v=1752848667&width=1445)
