Wow, okay so you were bitten by a zombie and have died... Neat. You have awoken as a member of the undead so you know not quite done. Oh, and you've managed to, just about, keep your faculties though the rot definitely hit the brain quite hard. Also, your pallet has become quite fickle. Must have been bitten by a zombie and passed a con saving throw upon death DC(15).

Dark vision

Your undead nature grants you the sight to see your prey. Gain 30ft of darkvison.

Adverse to the faithful

Your nature exists in contrast to the divine will.  Gain vulnerability to radiant damage.

Intelect of the dead

You're as smart as they come for a zombie. Your INT becomes 2.

Dead presence

Your dead exterior has its advantages such as being able to pass for a corpse. As a reaction to an attack, you can become almost Indistinguishable from a corpse, though an intelligence saving throw DC 15 will reveal you're true nature.

Undead Resilience

Instead of death saving throws you know roll a Con saving throw DC 5  + the damage you take past 0, on a success you regain 1hp on a fail you die.