Some ideas that Demogorgon could have


Hates fire
Has a passive sanity drain when nearby any fire source, stacking sanity drain per nearby fire.
Takes 4x damage from fire and is slowed down/groggy from being set on fire, also gives a massive sanity drain.
Monsters that have access to fire damage drain more sanity on Demogorgon.
Sanity drain during the day
More vulnerable to overheating
Sanity drain when hot
More sanity drain when overheating as well as 3x overheat damage


Likes the cold and dark -
No sanity drain in dusk
Sanity gain during night and caves
Less sanity loss from Charlie
Less sanity loss from being in pitch darkness.
Could potentially have night vision, perhaps only in caves.
Less vulnerable to freezing and less damage taken from freezing

Can build tunnels -
Can build a tunnel
Acting as wormholes and can be placed in the caves and the surface.
Cave and surface tunnels are separate.
Costs hunger and health.
Can only have 1 pair of tunnels in the surface and caves per Demogorgon, if a new one is made, it will be overwritten.

Primitive -
Takes 3x the time to craft
40% less map coverage

Agile -
Lunge ability has I-frames
Running for more than 3.5 seconds gives it a 1.4x speed boost

Frenzied -
Claw attack has its own arm swing animation, having full health is the same speed as a normal held tool/weapon
The less health Demogorgon has, the faster its swing speed is