Lighthouse Gem Monster

The "Lighthouse Gem Monster" is a Gem that first appeared in "Horror Club". It's notable for causing the lighthouse to appear as if it were possessed.

"Horror Club"
It was trapped inside of The Lighthouse wall, until Steven, Lars, Ronaldo Fryman, and Sadie showed up to free it. Its gem was bubbled and safely stored by Steven.

Abilities
It has the ability to possess, although it is unknown if this ability is limited to inorganic or non-living matter. While possessing the lighthouse, it was able to manipulate different parts of the building, like forming flesh-like matter and a mouth on the basement wall. It also has many paranormal-like abilities, such as possession of inanimate objects like scarecrows and fake bats. It carries the power of telekinesis, which is shown when it was able to levitate and throw objects inside the lighthouse. It also has the ability to project recordings of past events it has witnessed.

Trivia

 * It's the first Gem monster to utilize possession, rather than taking on a form of its own.
 * It is the third Gem Steven bubbled.
 * The other two are the Centipeetle Mother and Invisible Gem Monster.
 * However he has also bubbled the gem shards in "Secret Team".
 * It is the second Gem outside of the Crystal Gems that possesses a form of kinesis. The other one being Lapis Lazuli, who possesses hydrokinesis, not counting Pearl's ability to manipulate sand.
 * It is the first Gem monster to have some sort of consciousness when retreating to a gemstone. It was still able to communicate via projections when defeated.
 * However, it is unknown if it actually retreated to its gemstone, since it doesn't have a physical form.
 * It's capable of projecting recordings of events that it has witnessed, similar to Pearl's ability to project holograms, and Lapis Lazuli's ability to records events she has witnessed through the mirror she was trapped in.
 * It is the first Gem monster to possess the ability to talk. However, its speech is faint and disorientated.
 * It is the first Gem monster to target a specific individual, with Lars being that individual.
 * It is questionable if it is corrupted as no form has been seen that it's using.