Thestalos the Firestorm Monarch

Level 6 FIRE/Pyro Effect
2400 ATK / 1000 DEF

If this card is Tribute Summoned: Discard 1 random card from your opponent's hand, then, if it was a Monster Card, inflict damage to your opponent equal to its original Level x 100.

Rulings – Yugipedia

Printings:

Rise of Destiny: RDS-EN021 (Super Rare) - 2004-11-20
Rise of Destiny: RDS-EN021 (Ultimate Rare) - 2004-11-20
Structure Deck: Blaze of Destruction: SD3-EN011 (Common) - 2005-05-09
Tournament Pack 8: TP8-EN009 (Rare) - 2006-04-28
Dark Revelation Volume 3: DR3-EN081 (Super Rare) - 2006-11-25
Gold Series 2009: GLD2-EN008 (Common) - 2009-04-21
Duelist League 3 participation cards: DL12-EN007 (Rare) - 2011-06-01
Emperor of Darkness Structure Deck: SR01-EN008 (Common) - 2016-01-28
Quarter Century Bonanza: RA03-EN143 (Platinum Secret Rare) - 2024-11-07
Quarter Century Bonanza: RA03-EN143 (Quarter Century Secret Rare) - 2024-11-07

Prices:

Cardmarket: 0.40 €
TCGplayer: $ 0.66