Mysterion the Dragon Crown [LIOV-EN034] Ultra Rare XY19 if "Necrovalley" is on the

if "Necrovalley" is on the field: You can Fusion Summon 1 Spellcaster Fusion Monster from your Extra Deck

and let the fun begin

except a Token If this card is Fusion Summoned: You can add 1 "Magikey Maftea" from your GY to your hand

Set: Next Adventure Promos Card type: Option Rarity: Rare Play Cost: 5 When this card would be used from your hand

Mysterion the Dragon Crown [LIOV-EN034] Ultra Rare XY19 if "Necrovalley" is on theSet: Lightning Overdrive Card type: Fusion Effect Monster Rarity: Ultra Rare Attack: 3000 Defense: 1500 1 Spellcaster monster + 1 Dragon monster Cannot be used as Fusion Material. This card loses 100 ATK for each of your banished cards. If a monster uses its activated effect to Special Summon itself, or a monster(s) with its same original Type (except during the Damage Step): You can target 1 of those Special Summoned monsters; banish that monster,