Libromancer Fireburst - 25th Anniversary Tin: Dueling Heroes Mega Pack (MP23)

You can Ritual Summon this card with a "Libromancer" card. If this card was Ritual Summoned by using a monster(s) on the field, it cannot be destroyed by battle, also any battle damage it inflicts to your opponent is doubled. This card can make up to 2 attacks on monsters during each Battle Phase. When a monster declares an attack: You can banish 1 "Libromancer" Ritual Monster from your GY; this card gains 200 ATK.