Infection method. if the zombie drops to 0 hit points or less every creature in a 5ft cube that is not undead must make a DC 10 + (the amount of times the creature rolled against this trait, for the last minute) constitution saving throw or take [roll]1d4[/roll] poison damage and is poisioned for 3 turns.

Slam. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) bludgeoning damage.

Disconnected Limbs .when the zombie reaches half or less of it's total hit points and is supposed to die, the zombie can choose to use it's reaction to instead cuase the damage to hit it's legs and be unable to move until it's legs are healed.