i can make you a very good machine deck scar. Ever heard of karakuris? I'll just netdeck one real quick... Its a synchro deck.

[hider=karakuri]
Monsters
1x Solar Wind Jammer
1x Redox, Dragon Ruler of Boulders
3x Karakuri Soldier mdl 236 “Nisamu”
2x Karakuri Ninja mdl 919 “Kuick
3x Karakuri Komachi mdl 224 “Ninishi”
2x Karakuri Strategist mdl 248 “Nishipachi”
1x Karakuri Watchdog mdl 313 “Saizan”
3x Karakuri Merchant mdl 177 “Inashichi”
2x Psychic Commander
2x Maxx “C”

Spells
3x Instant Fusion
3x Emergency Teleport
3x Mystical Space Typhoon
1x Karakuri Cash Cache
2x Iron Call
1x De-Synchro
1x Limiter Removal
1x Book of Moon

Traps
3x Fiendish Chain
1x Solemn Warning
1x Bottomless Trap Hole
1x Compulsory Evacuation Device

Extra Deck
1x Crimson Blader
1x Black Rose Dragon
3x Karakuri Shogun mdl 00 “Burei”
3x Karakuri Steel Shogun mdl 00X “Bureido”
1x Naturia Beast
1x Ally of Justice Catastor
2x Cybersaurus
1x Mecha Phantom Beast Dracossack
1x Number 11: Big Eye
1x Divine Dragon Knight Felgrand

Side Deck
2x D.D. Crow
1x Maestroke the Symphony Djinn
1x Xyz Encore
2x Trap Stun
1x Soul Drain
1x Overworked
1x The Transmigration Prophecy
2x Gozen Match
2x Light-Imprisoning Mirror
2x Rivalry of Warlords
[/hider]

AS for deck, I dunno what to use. You don't want prophecies, and the only other decks I find fun are gimmick ones. I could do Dark World or Hieratic, but those are also ungodly powerful too >.>