Monsters: 20
Berserk Dragon x2
Sacred Phoenix of Nephthys x2

Cyber Dragon

Apprentice Magician x3
Dandylion
Hand of Nephthys x2
Krebons x3
Morphing Jar
Psychic Commander x2
Sangan
Spirit Reaper
Treeborn Frog

Spells: 12
A Deal with Dark Ruler x3
Brain Control
Emergency Teleport
Heavy Storm
Monster Reborn
Mystical Space Typhoon
Pot of Avarice x2
Scapegoat
Swords of Revealing Light

Traps: 8
Ebon Arrow x3
Mirror Force
Nightmare Archfiends x2
Ojama Trio
Torrential Tribute

Main point is to bring out berserk dragon a use ebon arrow on him. If your opponent has 3 or more monsters, you win. I'd like some help on fixing this deck (R/F), thanks for the help.

I'm not good with OTK attacks lol. One thing I'm sucked at so therefor al I can say is it's good. Nephthys is pretty hard to kill and Krebon and the other Tunner you mentioned can get Stardust or some other nice Synchros out on the field. Mind trying this deck out and test it? That usually works for me.

looks decent enough

Well I tested this deck against a few opponents and some of my recipes and did find a few things that flew by me.

Here they are:

Bottomless Traps
Dimensonal Prison
Solemn Judgement
Stall decks.
Raiza/Caius

That's about it if i remember. It's a pretty solid deck as well. Just throw in a Lightning Vortex/Mirror Force/ and a Solemn or Dark Bribe and your pretty much good to go.

One last thing that's bothering me is that if both Nepyhs get removed from the game the deck will pretty much run on only 4* monsters. You can try to run in some normal 8* monsters and have Ancient Rules in there. If you have Dark Dealer in your hand then it's pretty much easier to run the OTK. If you know or guess your opponent has a Solemn or Trap Hole, then you can sacrifice it to use Nightmare Archfiends and still use Dark Ruler's effect. Just throwing an idea out.

Thats true but even by trying to synchro to level 8 may take a while. A long while at least.