Numeron Slifer

A deck designed to be affordable based around the Numeron Network/Calling combo to get big summons off.

There are 3 copies of Numeron Network and 7 other cards that can grab it (Numeron Wall, Planet Pathfinder, and Terraforming), so you should have it turn one unless your luck is as bad as mine. From there you can either summon the Numeron Gates for an OTK if they have 1 monster in attack mode with 2000+ or if they only have 2 monsters than can defend 2000/4000 ATK, or you can summon one of the larger link monsters.

The Slifer/True Name/Card Advance/Soul Crossing package probably isn't the most efficient, but Soul Crossing is a good late game board breaker that will let you either sit on Slifer while you rebuild or close out the game as people struggle with not being able to drop anything less than 2000 ATK. It's mostly just for fun but there have been times where having Slifer comes in clutch.

Running 3 Numeron Calling is risky and it really makes the Extra deck super tight so this can often become a one trick pony. I'm working on the sideboard to make it more resilient in games 2 and 3.