Undead Fortitude. If damage reduces the zombie to 0 hit points, it must 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, the zombie drops to 1 hit point instead.

Fallen Undead. The first time the zombie takes damage, any living creature within 5 feet of the zombie must succeed on a DC 10 Constitution saving throw or gain disadvantage on attack rolls, saving throws, and ability checks for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on it early with a successful save.

Claws. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 7 (2d4 + 2) slashing damage. If the target is a creature other than an elf or undead, it must succeed on a DC 10 Constitution saving throw or take 1d8 poison damage, for 1 minute The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Bonus Action Name. Enter the description for how bonus actions work for your monster here.

Reaction Name. Enter the description for your action.

Enter the description for how legendary actions work for your monster here.

Legendary Action Name (Costs # Actions). Enter the description for your legendary action.

Mythic Action Name. Enter the description for how mythic actions work for your monster here.

Mythic Action Name (Costs # Actions). Enter the description for your mythic action.