Thunder Dragon + Musician King → Kaminari Attack

Thunder Dragon + Yado Karu → Kairyu-shin

Thunder Dragon + D. Human → Sword Arm of Dragon

Thunder Dragon + Turtle Raccoon → Kairyu-shin

Thunder Dragon + Prisman → Stone D.

Thunder Dragon + Cyber Saurus → Metal Dragon

Thunder Dragon + Laughing Flower → B. Dragon Jungle King

Thunder Dragon + Bean Soldier → B. Dragon Jungle King

Thunder Dragon + Cannon Soldier → Metal Dragon

Thunder Dragon + Guardian of the Throne Room → Metal Dragon

Thunder Dragon + Brave Scizzar → Metal Dragon

Thunder Dragon + The Statue of Easter Island → Stone D.