Monsturtle + Lesser Dragon → Spike Seadra

Monsturtle + Witch of the Black Forest → 30,000-Year White Turtle

Monsturtle + Crow Goblin → Turtle Bird

Monsturtle + Takuhee → Turtle Bird

Monsturtle + Morphing Jar → Boulder Tortoise

Monsturtle + Fiend Refrection #1 → Turtle Bird

Monsturtle + Little Chimera → Turtle Tiger

Monsturtle + Fairy Dragon → Spike Seadra

Monsturtle + Obese Marmot of Nefariousness → Turtle Tiger

Monsturtle + Electric Lizard → Bolt Escargot

Monsturtle + Lady of Faith → 30,000-Year White Turtle

Monsturtle + The Thing That Hides in the Mud → Boulder Tortoise