Harpie's Pet Dragon + The Immortal of Thunder → Twin-headed Thunder Dragon

Harpie's Pet Dragon + Electric Snake → Twin-headed Thunder Dragon

Harpie's Pet Dragon + Rainbow Flower → B. Dragon Jungle King

Harpie's Pet Dragon + Barrel Lily → B. Dragon Jungle King

Harpie's Pet Dragon + Laughing Flower → B. Dragon Jungle King

Harpie's Pet Dragon + Bean Soldier → B. Dragon Jungle King

Harpie's Pet Dragon + Mega Thunderball → Twin-headed Thunder Dragon

Harpie's Pet Dragon + Griggle → B. Dragon Jungle King

Harpie's Pet Dragon + Darkworld Thorns → B. Dragon Jungle King

Harpie's Pet Dragon + Abyss Flower → B. Dragon Jungle King

Harpie's Pet Dragon + Living Vase → B. Dragon Jungle King

Harpie's Pet Dragon + Tentacle Plant → B. Dragon Jungle King