Elemental HERO Thunder Giant (LCGX-EN046)

Elemental HERO Sparkman + Elemental HERO Clayman\n
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.

Effect Fusion Monster, Legendary Collection 2: The Duel Academy Years Mega Pack