Metal Skin: All Bludgeoning and slashing from non-magical attacks does a third of the damage. Additionally, all strength checks against the creature are at a disadvantage.

Robotic: Touching water causes the creature to fall unconscious and prone as well as taking 1D4 Lightning damage, the same effects apply if the creature touches something actively emitting electricity (e.g. they stumble back into a loose wire).                              

Trapped Soul: If the creature dies the soul inhabiting it is free, then acting as a temporary familiar. (See stat block also by me titled ghost child)

Slam: +2 to hit. 1d10 Bludgeoning damage.

Bite: +4 to hit. 2D8 Piercing damage.

New Friend: +5 to hit. 1D6 Bludgeoning damage and the enemy is grappled.

The Bite of 87: +3 to hit. Makes one New Friend attack followed by three bite attacks. If the creature attacked is still alive, they fall prone

Jumpscare: Any creature in a 10ft cone must make a DC 14 Constitution check, on a failed save the creature is frightened for a turn. 

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.