Spawning: The egg has 2 charges to spawn from the lsit below. These charges reset every Dawn.

Zombie Spawn. Spawns 5 zombies in 1d10 minutes.

Zombie Ogre Spawn. Spawns 2 zombie ogre in 1d4 hours.

Zombie Giant Alligator Spawn. Spawns 1 giant zombie alligator in 1d6 hours once per day. 

Burst Spawn. As an action the egg can spawn one of the following groups; 5 zombies or 2 zombie ogres. 

Regen. As an action the egg can regen 2d8 hit points.

Teleport. As a bonus action the egg can charge up teleport which allows it to travel 500 ft. any direction. The charge takes 2d4 turns to complete and if damage is taken while charging the egg must make a Consitution saving throw DC equal to 10 or half the amount of damage taken whatever is higher. If failed the teleport drops and the egg cannot use this again for 2 turns. If successful the egg maintains concentration on its teleport.

Acid Blood. as a reaction the egg can do 3 (1d6) acid damage to a creature that has dealt damage to it.