Beat your opponent with "Chaos Ancient Gear Giant" and its multiple attacks and piercing damage.
A simple way to do it is by summoning "A.G. Dark Golem" and adding "A.G. Fusion", wich can be done through various methods, for example:
- Using "A.G. Wyvern" or "A.G. Frame" to add "A.G. Advance", activate it, add "A.G. Catapult", use "A.G Advance" effect to tribute the monster you have on the field, so you can activate "A.G. Catapult" and special summon "A.G. Dark Golem".
- Use "Urgent Schedule" to special summon two infinitrack monsters, link summon "A.G. Ballista", use its effect to add "Geartown", activate it, then use "A.G. Ballista" to destroy it, wich will let you summon "A.G. Dark Golem". You also could use "Infinitrack Trencher" in your GY to summon the other infinitrack monster and use it to summon a monster from your hand, so you can summon a xyz monster from the extra deck.
As you could guess, this deck is made for playing second.