The final boss monster in the game, hiding in an "unknown dungeon", with it's lore being foreshadowed throughout the game.
In an environment where Psychic types are arguably overpowered, with no Dark and Steel -types to resist it, it's only weakness, is a 11 year old kid with infinite Master Balls.
Format Ver.1.0.5-3, Post Updated Date:20170912_1414
Details above depicts one caught by a player, not fully representative of this file.
If transferred from VC GS, it'll instead state the Johto Region.