Skelgon + Patrol Robo → Metal Dragon

Skelgon + Weather Report → Kairyu-shin

Skelgon + Mechanical Snail → Metal Dragon

Skelgon + Greenkappa → Sword Arm of Dragon

Skelgon + Living Vase → Pumpking the King of Ghosts

Skelgon + Tentacle Plant → Pumpking the King of Ghosts

Skelgon + Morphing Jar → Stone D.

Skelgon + Giant Turtle Who Feeds on Flames → Kairyu-shin

Skelgon + Rose Spectre of Dunn → B. Dragon Jungle King

Skelgon + Ghoul with an Appetite → Curse of Dragon

Skelgon + Violent Rain → Kairyu-shin

Skelgon + Penguin Soldier → Kairyu-shin