zombie set for dungeons and dragons DND

Zombies (x6)

Size: Medium
Type: Undead
Armor Class: 8
Hit Points: 22 (3d8 + 9)
Speed: 20 feet

STR        DEX       CON    INT       WIS    CHA
13 (+1)    6 (-2)    16 (+3)   3 (-4)   6 (-2)   5 (-3)

Damage Immunities: Poison
Condition Immunities: Poisoned
Senses: Darkvision 60 feet, Passive Perception 8
Languages: Understands languages it knew in life, but cannot speak
Challenge: 1/4 (50 XP)

Traits:

Passive Perception: 8
Incessant Reanimation: If the zombie takes damage that reduces it to 0 hit points, it must make a DC 5 Constitution saving throw + the damage taken. If successful, the zombie drops to 1 hit point instead of falling unconscious.

Actions:

Hit: Melee weapon attack: +3 to hit, reach 5 feet, one target. Hit: 4 (1d6 + 1) bludgeoning damage.

Zombie with Axe

Actions:
Axe: Melee weapon attack: +3 to hit, reach 5 feet, one target. Hit: 5 (1d8 + 1) slashing damage.

Zombie with Chainsaw (Improvised Weapon)

Actions:
Chainsaw: Melee weapon attack: +3 to hit, reach 5 feet, one target. Hit: 4 (1d6 + 1) slashing damage. (You might consider giving it an additional effect, such as a chance to snag armor on a low critical hit.)

Zombie with Improvised Mace (stick with something heavy)

Actions:
Improvised Mace: Melee Weapon Attack: +3 to hit, reach 5 feet, one target. Hit: 4 (1d6 + 1) bludgeoning damage.

Zombies with Cubes (improvised weapon)

Actions:
Cube: Melee Weapon Attack: +3 to hit, reach 5 feet, one target. Hit: 3 (1d4 + 1) bludgeoning damage. (You might consider these zombies trying to hit and perhaps knock down characters due to their clumsiness.)

Dungeon Master Notes:

This group of zombies presents a low but numerous threat. Their Incessant Reanimation may make them more persistent than they appear.
The variety of improvised weapons adds an interesting touch and can slightly influence the damage they deal.
Zombies are slow and clumsy, making them vulnerable to ranged attacks and more agile characters.
Consider how they acquired these weapons. Were they working in a specific location before becoming undead? This can add flavor to the encounter.
You could have a stronger zombie leader or a necromancer controlling them to increase the difficulty.