Six Samurai with some extras.

[Firas]

Monsters
Great Shogun Shien
Grandmaster of the SS
Cyber dragon x2
SS - Zanji x2
SS - Irou x3
SS - Kamon x2
SS - Yaichi x2
SS - Nisashi x2
Necro Gardna
Command Knight
Neo-Spacian Grandmole

Spell
Reinforcments of the Army x2
Cunning of the Six Samurai
SS United x2
Mage Power
Giant Trunade
MST
Fusion Sword Murasame Blade
Swords of Revealing Light
Warrior Returning Alive
Double Summon
Lightning Vortex
Shiens Castle of Mist x2
Swords of Concealing Light
Heavy Storm
Monster Reborn

Traps
Magic Cylinder
Sakuretsu Armor
Karma Cut
Dust Tornado

Im missing some cards that I really need like
Zanji
Another Grandmaster
Foolish Burial x2
Warrior returning alive x2

And some others I cant think of, I got this idea though from a tournament deck and did a few changes.

[onox]

Switch Lightning vortex with raigeki, And giant trunade with feather duster, And since samurai's swarm i advice united we stand instead of mage power. Check out my GB deck in sig you you can.

[terran26]

im also buildin up a six samurai deck, i got the basic cards down, but looking for some help on power cards, or cards that will help me swarm faster. so if anyone can help, that would be great!

[jerryman]

You need to add some reasonings for extra summoning and spirit of the six samurai for draw power, 2x grandmaster 2x shogun and 2x cunning of the ss. hope this helps.