Trebla

Trebla is the arch enemy of Albert, constantly reinforcing the Fourth Wall, and lying to the characters, telling them that they are real.

Origin
The earliest known use of "Trebla" is currently unknown. However, it is speculated that Trebla was first used in a Ben 10 Talking Game.

Relationship with Albert
Trebla and Albert have been arch enemies since the begining of time. Trebla believes that nobody should know the truth about the Multiverses, which is that they are all fictional. As such, he follows Albert around the Omniverse, undoing Alberts work, and convincing the characters that their Multiverse is the only one, and that they are not just "toys being controlled by hands".

It is also speculated that Albert is his twin brother.

Abilities
Trebla, knowing the true nature of the Multiverses, posseses extremely powerful abilities, one of which being the ability to rewind time. Trebla uses this ability to his advantage, rewinding the moments Albert informs characters of their fictionality, essentially making them never happen. He has also shown the ability to create objects out of thin air, especially when Albert would have messed up the Multiverse.

Misconceptions
Though Trebla is mostly considered a "good guy", that is not always so. In Lucid Dreaming, Trebla tends to convince the dreamer that it isn't a dream, and that they are in real, waking life. However, he usually fails when the dreamer destroys him, or just teleports away.

Trivia

 * The name "Trebla" is the reverse form of "Albert".
 * Though Trebla knows that he isn't real, he tries to prevent others from seeing the truth.
 * If Trebla were to fail against Albert, the result would be a Corrupted Universe.
 * Trebla is one of the three known people with the ability to cross Multiverses. The others are Albert and The Great Funny.
 * During The Battle for the Land of Trophys, Trebla nearly lost to Albert. However, with Kirby and Rainbow's help, he defeated him.