Here is a another competitive deck in the Yu-gi-oh world. Light monsters with Cyber dragon infinity in it. Practise the deck to master it.
Galaxy soldier x3
Cyber dragon x2
Black luster soldier – Envoy of the beginning
Aleister the invoker x3
Cyber dragon core x2
Cyber dragon drei x2
Thunder king Rai-oh
Magicial meltdown x2
Twin twister x2
Swords of revealing light
Cyber repair plant
Quaking mirror force x2
Jar of avarice
Invoked Mechaba x3
Chimeratech fortress dragon
Chimeratech rampage dragon
Number 103: Ragnazero
Number 39: Utopia
Number S39: Utopia the lightning
Wind-up arsenal Zemmaioh
Cyber dragon nova x2
Cyber dragon infinity x2
Use Aleister the invoker to fusion summon Invoked Mechaba and Invoked Caliga.
Fusion monsters should have the spell field card out called Magical meltdown where it protects them when they are summoned.
Summon Cyber dragon infinity with Galaxy soldiers and light monsters. Use Galaxy solider, Cyber dragon and Cyber dragon drei together to XYZ summon Cyber dragon Nova and then overlay Cyber dragon infinity over it.
Use Overload fusion to summon strong dark machine fusion monsters from your extra deck. Or summon the fusion monsters from the machine cards on your side of the field. No Polymerization needed.
Draw cards with Aleister the invoker, Cyber repair plant, Upstart goblin, Invocation, Magical Meltdown, Cyber dragon core, and Jar of avarice.
Defensive cards are Solemn warning, Quaking mirror force, Fiendish chain, Swords of revealing light, Limiter removal and Solemn strike.
Use Honest from your hand to double a light monsters attack if it were to be destroyed.