well,i disapprove of netdecking very much, so i wont give you an entire build, but here are some basic staples
cyber dragon
sangan
marshmallon
snipe hunter
breaker the magical warrior
pot of avarice
brain control
smashing ground
fissure
lightning vortex
shield crush
nobleman of crossout
heavy storm
mystical space typhoon
premature burial
call of the haunted
mirror force
torrential tribute
phoenix wing wind blast
dark bribe
and here are some deck ideas and key cards
monarchs- bring out tribute monsters to disrupt your opponent's draws and hand, then use sheer strength to bash them down- raiza the storm monarch, thestalos the firestorm monarch, treeborn frog, foolish burial
gadgets- use smaller monsters to raid the field and control your opponent- red gadget, yellow gadget, green gadget, hammer shot, transmigration prophecy
crystal beasts- use jesse anderson's crystal beast cards to special summon and abuse ancient city rainbow ruins to then otk with rainbow dragon and crystal abundance- crystal beast cards