Just decided to make this deck for fun. I added in a few links so you can XYZ summon more than one monster. The main focus is to reuse the gagaga's over and over again from the graveyard using the effects of the monsters. This is my first deck I've ever built, so I hope it's halfway decent-
Possible Combo:
Gagaga Child + Any gagaga monster other than clerk and head. Summon Utopia Double, activate it's effect, summon Normal Utopia, Kaiser, The lightning, or beyond. (Kaiser is the best choice, because of the field spell.) If the monster is destroyed and you already had your field spell active before you started the combo, then activate the field spell and summon head, and activate it's effect.