Chthonian Emperor Dragon [TAEV-EN019] Ultimate Rare Pharaoh Tour Promos remove it from play when

remove it from play when it is removed from the field

your opponent's card effects

while it has an Xyz Material attached that was originally Dragon-Type

while it remains on the field all of your opponent's monsters lose 300 ATK

Chthonian Emperor Dragon [TAEV-EN019] Ultimate Rare Pharaoh Tour Promos remove it from play whenSet: Tactical Evolution Card type: Gemini Monster Rarity: Ultimate Rare Attack: 2400 Defense: 1500 This card is treated as a Normal Monster while face up on the field or in the Graveyard. While this card is face up on the field, you can Normal Summon it to have it be treated as an Effect Monster with this effect: This card can attack twice during the same Battle Phase.