Mill Cyber Dragons and a Cyber Dragon Herz, adding cards to your hand and Special Summoning along the way. Use Cyber Revsystem, Cyber Emergency, and Galaxy Soldier to help get a lot of monsters on the field. From there, link summon Sieger (Where applicable), however prioritize summoning Cyber Dragon Nova and bringing out Infinity for effect negation. Other cards can help support and speed you up or slow down the opponent,
The Side Deck is optimized against Fusion or Swarm (the deck type, not the archetype) decks. Super Polymerization can easily take out boss monsters - specifically, Salamangreat ones - quickly. De-fusion can disrupt the strategy very well and Non-Fusion Area will stop Fusion altogether. The rest of the cards are against Swarm Link decks. Skill Drain can negate the continuous effect(s) of a boss monster and you can bring it down with a Power Bond combo. Phantazmay and Summon Limit will severely hinder their ability to swarm and summon high Link Ratings.
Credit to
JTS.Dawnstar for the deck that I modified to make this.