What is the name of the trial started by the mysterious tower in Pokémon Pokopia?

The mysterious tower in Pokémon Pokopia starts the Team Initiation Challenge.

During the story, Ditto and Professor Tangrowth discover a tower after Ditto has begun restoring habitats. The structure initiates a challenge that requires Ditto to provide particular items supposedly needed for the well-being of Pokémon.

The challenge is part of Pokopia's plot mystery rather than a standard Pokémon Gym or League competition. The game's main progression is built around restoring environments and helping Pokémon, so this unusual test fits the title's exploration and reconstruction theme.

It is easy to confuse the Team Initiation Challenge with familiar Pokémon trials because the series often uses formal tests to measure a trainer's progress. In Pokopia, however, the challenge comes from the mysterious tower and centers on supplying items, not battling Gym Leaders.