Thestalos the Firestorm Monarch [DR3-EN081] Super Rare RC15 if you have no cards

if you have no cards in your Spell & Trap Card Zone: You can detach 1 Xyz Material from this card

If you roll a 20

Cannot be Special Summoned

Set: Ixalan Prerelease Promos Type: Artifact Rarity: Rare Cost: {5} As Vanquisher's Banner enters the battlefield

as if it had always known

Thestalos the Firestorm Monarch [DR3-EN081] Super Rare RC15 if you have no cardsSet: Dark Revelation Volume 3 Card type: Effect Monster Rarity: Super Rare Attack: 2400 Defense: 1000 When this card is Tribute Summoned, randomly discard 1 card from your opponent's hand to the Graveyard. If the discarded card was a Monster Card, inflict damage to your opponent equal to the Level of the monster x 100.