Rainbow Marine Mermaid + Morphing Jar → Mystical Sand

Rainbow Marine Mermaid + Muse-A → Dark Witch

Rainbow Marine Mermaid + Pale Beast → Nekogal #2

Rainbow Marine Mermaid + Little Chimera → Nekogal #2

Rainbow Marine Mermaid + Tenderness → Dark Witch

Rainbow Marine Mermaid + Obese Marmot of Nefariousness → Nekogal #2

Rainbow Marine Mermaid + Great Bill → Marine Beast

Rainbow Marine Mermaid + Shining Friendship → Dark Witch

Rainbow Marine Mermaid + Hourglass of Courage → Dark Witch

Rainbow Marine Mermaid + Marine Beast → 7 Colored Fish

Rainbow Marine Mermaid + Snakeyashi → Queen of Autumn Leaves

Rainbow Marine Mermaid + The Thing That Hides in the Mud → Mystical Sand