Hero Kid
The point of this deck is to painly use EARTH monsters in a swarm style so you can XYZ summon as quickly and frequently as possible. It mostly starts out with using 3 'Hero Kid's to bring out Gachi Gachi Gantetsu. Getting those out is easy becasue if you can special summon one, you get all of them. The second step would be bringing out 'Number 17: Leviathan Dragon' and ditching one of it's materials whilst comboing off Gachi to get 2900 whilst still being able to attack. I have a specific list of standard cards to use, but you should throw in bulk cards to help your play style. I based this deck off the 2011 starter deck 'Dawn Of The XYZ'.
Recommended Cards:
Monsters:
Field-Commander Rahz
Trident Warrior
Feedback Warrior
Giant Rat (3)
Hero Kid (3)
Marauding Captain (3)
Magic/Spell Cards:
Reinforcement of the Army
The Warrior Returning Alive (3)
XYZ Energy
Pot of Avarice
Trap Card
Call of the Haunted
Ultimate Offering (2)
Utopian Aura
Reinforce Truth
XYZ Effect
Desperate Tag
Reinforced Space
Extra Deck
Gachi Gachi Gantetsu
Grenosaurus
Number 17: Leviathan Dragon
Number 39: Utopia