Elemental HERO Thunder Giant is a Quarter Century Secret Rare Fusion Monster card from Yu-Gi-Oh! (Quarter Century Bonanza, RA03). Current market price: $0.43.
Quarter Century Secret Rare
Quarter Century Bonanza (RA03)
Card Text
"Elemental HERO Sparkman" + "Elemental HERO Clayman"
Must be Fusion Summoned and cannot be Special Summoned by other ways. Once per turn: You can discard 1 card to target 1 face-up monster on the field with original ATK less than the ATK of this card; destroy that target.
