Your Strength score increases by 1. You also gain 2 points of Constitution.

Your zombie character can speak Common by default. All other languages are foreign to them.

Many zombies are chaotic evil, driven by the will of whatever necromancer brought them back. Others are chaotic neutral, existing only to sate their eternal craving for flesh.

As they can technically live forever, zombies have no specific age range. Their age is typically considered as the day they rose from the dead, and a zombie could be anywhere from five days old to well over eight hundred.

Your base walking speed is 30 feet.

While a zombie can technically be of any race, typically they are of a humanoid race. Your size is Medium.

Walking the balance between life and death is a painful thing for a zombie. When a spell is cast on you, you are treated as Undead for calculation purposes, and holy magic that would heal you harms you instead. However, you have immunity to necrotic damage, and are instead healed when a necrotic spell is cast upon you.

Without any normal way to heal yourself, you have to restore your life in other manners. Thankfully, zombies can regenerate their stamina by consuming flesh and blood.  Eating any red meat will heal you by a mere 3HP, but you can regain more HP by draining your victims' life force. You can make a bite attack against any enemy to try to drain their life force. On a successful attack, you deal (1d4 + STR) piercing damage to the target and regain HP equal to the amount dealt, unless the target is also undead.

It is a well-known fact that a zombie's teeth are laced with a special poison, the sort of poison that infects whatever strikes it. When you use your Draining Bite attack against a living creature, that creature makes a CON save against poison. If they fail, the creature is poisoned and takes 1d4 poison damage during each of its turns. In addition, if the creature finishes the battle with the poison still intact, it does not subside. The condition lasts until either it is healed or the creature dies, after which, should the creature have been killed by your poison, it reanimates as a zombie itself six hours later. Even if they were once a player, this zombie is not treated as a player-created zombie and uses the default monster stats from the Basic Rules. The DM controls them as a monster encounter.

Starting from level 4, your undead body becomes more resilient to killing blows. If damage reduces you to 0 hit points, you can make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant or from a critical hit. On a success, you drop to 1 hit point instead. You can use this trait twice per long rest, with additional saves being available at levels 9, 13, and 18.