Taiiko

"???" Elements: Plasma, Shadow, Mech, Poison

This monster can be bred with two Double Elements.

Jellbilly + Arackulele

Whisp + Dragong

Nebulob + Kazilleon

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

Skulltar + Ghazt

Steldrum + Grumpyre

Volcapad + Reebro

Vocobot + Humbug