Side deck?

What kind of cards should I have in my side deck, and when should I bring them out?

What cards? Yugioh of course! :p For your deck I would put in at least 2 kinetic soldiers for six samurai (an incredibly broken deck.) The best side deck depends on your deck. Here's mine to give you an example
2 pulling the rug (Machina, Gadget hate)
2 Trap hole (x-saber, six sam)
2 Noblemen of Crossout (ryko and gravekeeper spy hate)
2 Kinetic Soldier (Six sam hate)
...thats all I have so far :p
Cyber dragons are also a must!

Tyler...the decks that might be there will be as follows:
Fish otk-http://yugioh.wikia.com/wiki/Fish_Synchro_OTK_Deck
Gladiator Beasts http://yugioh.wikia.com/wiki/Gladiator_Beast
Gravekeepers-http://yugioh.wikia.com/wiki/Gravekeeper%27s
Six Samurai-http://yugioh.wikia.com/wiki/The_Six_Samurai (look mostly into the Legendary Six Samurai)
Light gemini Beat
X-Sabers-http://yugioh.wikia.com/wiki/X-Saber (not the best link but oh well)
etc...thats all I can think off the top of my head....
here's the top 32 list of a YCS
http://www.konami.com/yugioh/blog/?p=5695

I think we should make a thread for the metas in the tournement scene.