Gummby

"???" Elements: Plasma, Mech, Crystal, Poison, Spectral

This monster can be bred with a Double Element and a Triple Element.

Steldrum + Flutehog

Jirobeat + Nebulob

Fraliean + Dragong

Steldrum + Sox

Irosynth + Fung Pray

Plantra + Bellowfish

Rillaquina + Jellbilly

Stegohorn + Shadowmorph

Octopiano + Dragong

Pipgan + Plasbot

However, it can be bred with a Single Element and a Quad Element.

Monosynth + Ghazt

Purplharp + Reebro

Rockingocal + Jeeode

Yee-T + Humbug

Robobanjo + Spectgon