Thestalos the Firestorm Monarch (UTR) [RDS-EN021] Ultimate Rare XY154 Set: Mattel Action Figure Promos:

Set: Mattel Action Figure Promos: Series 3 Card type: Effect Monster Rarity: Parallel Rare Attack: 800 Defense: 1200 If this is the only card in your hand

Set: Foreign Black Border Type: Enchantment Rare Cost: {G} You may play any number of lands on each of your turns

Set: Legacy of Darkness Card type: Effect Monster Rarity: Ultra Rare Attack: 1900 Defense: 1400 When this card attacks with an ATK higher than the DEF of your opponent's Defense Position monster

(Exile it only if it's still on the battlefield

Thestalos the Firestorm Monarch (UTR) [RDS-EN021] Ultimate Rare XY154 Set: Mattel Action Figure Promos:Set: Rise of Destiny Card type: Effect Monster Rarity: Ultimate Rare Attack: 2400 Defense: 1000 When this card is Tribute Summoned successfully, 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's Life Points equal to the Level of the monster x 100 points.