Hello guys! There is too much vids in the internet about "0 to Death Combo". But most of them are fake.
First, you cannot do a -full- zero to death combo without a partner. (Or else there will be a chance to dodge your combo.)

Now i'll just show my vids which about 0 to death. It may help you ^^
DIANA & WU-SHANG

DIANA & HATTORI

(We used a gamepad for making these.Because its hard to build a combo against bots or real players.But if you have a ♥♥♥♥♥♥ friend you can use that too ^^)

1) Create a custom game lobby.
2) Setting > Time: 15 Mins / Maps > 2v2
3) Invite your friend.
4) Join the game with your game pad.

(REALLY IMPORTANT STEPS:)

Before builiding a new combo just imagine what do you think?
There is too much characters in game and that means too much 0-to death combos.
But with some weapons you have no chance to do 0 to death in some maps. (Like King's Pass)

Recommanded Weapons: [For All Maps!]
Sword
Gauntlets
Blaster
Katars

Some Recommanded Characters:
-Diana
-Hattori
-Wu-Shang

>> DO NOT FORGET TO TRY YOUR COMBO ON A FEW CHARACTERS! <<
5)Now its time to try what you have.
For example i'll think for Wu-Shang[Gauntlet] /Diana [Blaster] 0 to death.
Why Diana and Hattori?
-Diana's Down Sigs are really usefull for that.
-Gauntlets are powerfull. Especially with Wu Shang!

Hmm what we have? Lets think about that. (I'm just imagining that.)
Wu Shang {Gauntlet} = WS //// Diana {Blaster} = DI

e.1) WS Nlig > DI Nlig > WS [Jump] Sair > DI [Turn] Dsig > WS Nlig > DI Dlig > WS GC Nlig > DI [Jump+Turn] GC Dsig > WS Land [Turn] Ssig.

etc.

If you need help for something about "combo building" dont hesitate to ask ^^. I may help you.

Thanks for reading ^^. I wanted to prepare more examples but i have no time for that for now.