Powers and Stats
Tier: Likely 2-B
Classification: Pokémon, Legendary Pokémon, Being of Willpower
Powers and Abilities: Superhuman Physical Characteristics, Higher-Dimensional Existence, Large Size (Type 9), Self-Sustenance (Types 1, 2, and 3), Abstract Existence (Type 3; Conceptual embodiment of Willpower), Avatar Creation, Immortality (Types 1), Acausality (Type 4), Cosmic Awareness, Telekinesis, Willpower Manipulation, Can seal any moves known by its opponent that it also knows, Self-Destruction, Willpower Manipulation, Astral Projection, Mind Manipulation, Space-Time Manipulation (Destroyed a singularity), Dream Manipulation (Contacted Ash via this method), Precognition (Foresaw its impending capture and in combat via the move detect), Portal Generation, Illusion Creation, Energy Manipulation (via certain psychic type moves), Teleportation, Earth Manipulation, Soul Manipulation, (Type 1), Immunity to Soul Manipulation (Predates souls), Regeneration (Mid-Low).
Speed: Infinite (Reacted to and intercepted Dialga's attack)
Lifting Strength: Immeasurable
Striking Strength: Likely Multiversal
Durability: Likely Multiverse level (The Lake Trio were completely unaffected by Dialga's reset of the Universe in "Pokémon Diamond and Pearl Adventure!")
Stamina: Limitless (Roams Sinnoh, seemingly unaffected by the extraction of the red chains and the immense pain it was forced to go through mere moments ago)
Range: Standard melee range. Likely Multiversal with its abilities (Can transport Dialga and Palkia to and from the Universe, and endowed the world with spirit)
Standard Equipment: None notable
Intelligence: Very high (Power-scaling to Giratina as it was instrumental in the solving of Giratina's test)
Weaknesses: Ghost, dark, and bug-based attacks.