Thestalos the Firestorm Monarch [DR3-EN081] Super Rare RT4 choose 1 Energy card attached

choose 1 Energy card attached to the Defending Pokemon and discard it

Set: XY: Furious Fists Type: Fire Rarity: Promo Retreat cost: Colorless

this attack does 10 damage to each of your opponent's Pokemon

Set: EX: Hidden Legends Type: Water Rarity: Ultra Rare Retreat cost: Colorless

and it gets -25000 power for the turn

Thestalos the Firestorm Monarch [DR3-EN081] Super Rare RT4 choose 1 Energy card attachedSet: 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.