Reverb

Reverb
Information
Species	Possessor spirit
Occupation	Possessing others to make them do evil deeds
Status	Alive
Goal	Possess Arthur (partially succeeded) Kill Lewis (succeeded) Possess Mystery and grab his heart (possibly succeeded)
Enemies	The Mystery Skulls, including Lewis Possibly Shiromori
Likes	hurting innocence Power
Dislikes	Interference in his plans
Production
First	Ghost
Latest	The Future

Reverb ("Rev" for short) is the green entity that possessed Arthur's left arm and is the main antagonist for the series.

Appearance

At the start of the series, He's seen in the form of Arthur's severed arm, turned sickly green due to the corruptive influence of possession. In his first profile and in "Freaking Out", Rev has a glowing green eye in the middle of his palm with a black sclera. With the release of his second profile, his appearance is shown to be demonic looking with glowing green eyes with black sclera, translucent smoky hair, bat wings, large horns that protrude out of his forehead, spiky shoulders/arms and a glowing green cigarette in his mouth.

Personality

Almost nothing is known of Rev's personality, other than the fact that he seems to be indiscriminately aggressive and malevolent.

He's the evilest entity known to man and yokai, far outclassing even Shiromori in hostility.

From the events of "The Future", it can be surmised that Rev is very patient and manipulative, tailing the team unseen and awaiting the right moment to possess Mystery.

He's also shown to fear Shiromori due to the fact that in his current form he wouldn't stand a chance against her in a direct confrontation.

History

Reverb's origins are unknown, but he used to inhabit an abandoned cavern outside of town. In a flashback from "Ghost", when the Mystery Skulls explored the cave one night, Rev possessed Arthur and slowly took over the left half of Arthur's body. He then forced Arthur to push Lewis over the cliff to his death. However, before the possession was complete, Mystery tore Arthur's arm from its socket and trapped Rev inside it.

In "Freaking Out", Rev, still possessing Arthur's left arm, appears briefly outside the entrance of the cave where he spots Shiromori approaching. He reacts nervously and quickly leaves the cave before Shiromori could notice him.

Near the end of "The Future", Rev is seen grasping Mystery's damaged heart and emitting an eerie laugh.

Abilities

• Possession: Reverb is a being capable of possessing others, taking over their body. Because Rev is shown using this ability to take advantage of Arthur's jealousy for Lewis and Mystery's grief over the death of Shiromori, it's shown that this ability is more effective when used on the emotionally unstable and does not grant Rev absolute control of the subject's body, but rather amplifies the subject's negative emotions. This effect seems to come on gradually as Arthur's possession was slow enough to allow Mystery to save Arthur by severing his possessed arm. The fact that all sentient life in the cave has presumably succumbed to this ability (as evidenced by the bat's eyes glowing green) also shows that Rev's corruption festers as more time is spent in his proximity.
• Unknown second ability: According to Reverb's second profile, he has another ability aside from possession that's currently hidden due to the [REDACTED] text.

Reverb's Profile on Mystery Ben' s blog.

???'s Profile on Mystery Ben's blog.

Trivia

• It's currently unknown who or what Reverb actually is. In "Ghost", during the flashback scene when Arthur was possessed by Rev and killed Lewis, a black bat with glowing green eyes at the cave can be seen instead of the cave's purple colour scheme in "Freaking Out", implying that Rev may be able to shape-shift and/or possess other animals.
• In "The Future", Rev's cameo at the end shows that it's responsible for Mystery's new monstrous form. It's also implied that possessing Mystery may have been a beneficial situation that he took advantage of.
• In "Freaking Out", for a split second (at about 0:11), Rev is shown to break into a cold sweat from seeing Shiromori. This suggests that the two may have met before, but it may also simply mean that Rev saw her as a potential enemy and wouldn't be able to defeat her while in the form of a severed human arm.
• Rev followed Shiromori or her petals in order to track down the Mystery Skulls group.
• In a stream, Kressent Rhodes suggested the spirit's name may be "Treble", although this is probably a joke. With his second profile revealed recently, this definitely was meant as a joke since his true name was confirmed as "Reverb".
• Rev may be part of an unknown organization that hasn't been introduced into the MSA universe yet due to the similar music term names used for him, Duet, and "Solo" (A new character mentioned on Rev's second profile). These might be code names.

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