Monsturtle + Takriminos → Spike Seadra

Monsturtle + Yamadron → Kairyu-shin

Monsturtle + Labyrinth Wall → Boulder Tortoise

Monsturtle + Mystic Lamp → 30,000-Year White Turtle

Monsturtle + Metal Dragon → Sea King Dragon

Monsturtle + Blast Juggler → Giant Turtle Who Feeds on Flames

Monsturtle + Sky Dragon → Sea King Dragon

Monsturtle + Thunder Dragon → Kairyu-shin

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

Monsturtle + Spike Seadra → Kairyu-shin

Monsturtle + Kappa Avenger → Hyosube

Monsturtle + Barrel Rock → Boulder Tortoise