Tren Krom is an ancient organic being created to observe and maintain the Matoran Universe prior to the existence of Mata Nui. Once Mata Nui was created, Tren Krom's duty came to an end, and he was fused to an island by a Great Being, sealed away from the rest of the world.
Powers and Stats
Tier: High 6-C, possibly much higher
Name: Tren Krom
Age: 100, 000 years old
Classification: Ancient Organic Entity
Powers and Abilities: Superhuman Physical Characteristics, Telepathy (Can read minds and communicates through telepathy), Mind Manipulation (Can merge minds, freed the Toa Hagah and Miserix from Teridax's mental illusions, his appearance itself is enough to threaten even Brutaka with insanity, and the presence of his mind in the minds of others drives them closer to insanity), can swap the minds of others, Earth Manipulation (Can manipulate the earth on his island), Disintegration, Immortality (Type 1)
Attack Potency: Large Island level (Tren Krom is fused with an island and has complete control over it, overpowered Brutaka with a tentacle), possibly much higher (Maintained the Matoran Universe before it was completed, nears Mata Nui's power, and was contacted to aid in defeating Teridax in the Great Spirit Robot), can ignore conventional durability by attacking the mind.
Speed: Massively Hypersonic+ (Should be comparable in speed to Toa and Makuta, who can fight against Avohkah, lightning-based Rahi that possess the properties of lightning and were mistaken for lightning bolts, as well as other lightning manipulators)
Lifting Strength: Unknown
Striking Strength: Large Island Class
Durability: Large Island level, possibly much higher
Stamina: Unknown, likely limitless.
Standard Equipment: Nothing notable.
Intelligence: Extremely high. Tren Krom has a deep, fundamental understanding of the Matoran Universe and all its workings.
Weaknesses: Tren Krom is fused to and confined to his island.