Luminous Legends Y

Luminous Legends Y was the second of two events in Pokémon GO based on Kalos Legendary Pokémon, this one being for Yveltal.

Two Pokémon Spotlight Hours featuring Alolan Rattata and Marill respectively, and a Special Weekend were available during this event.

The event was split into two parts. The first part contained a Global Challenge that influenced rewards and spawns in the second part.

First part
During this event Team GO Rocket Balloons could appear in a four-hour window instead of six-hour (from 00:00 to 03:59, 04:00 to 07:59 and so on), thus Trainer had a chance to encounter six balloons a day.

Featured Pokémon
The following Pokémon were released with the start of the event:

These Shadow Pokémon were released with the start of the event:

These Shiny Shadow Pokémon were released with the start of the event:

Selected Pokémon had increased spawn rates in the wild:

7-km Pokémon Eggs obtained during the event would hatch more of these Pokémon:

The following Raid Bosses were available for a time of this event:

Field Research event tasks
There were several Field Research tasks exclusively for the duration of the first part of the event.

Timed Research
During this event there was a Timed Research series that was titled Luminous Legends Y in game. It was available in both parts of the event.

Global Challenge
During the event, a global challenge was available. The bonus will be applied during the second part of the event if completed.

Second part
During this event Team GO Rocket Balloons could appear in a four-hour window instead of six-hour (from 00:00 to 03:59, 04:00 to 07:59 and so on), thus Trainer had a chance to encounter six balloons a day.

Featured Pokémon
The following Pokémon were released in the second part of the event:

These Shiny Pokémon were released in the second part of the event: PS Zigzagoon PS Linoone PS Sylveon PS Sylveon PS Obstagoon

Selected Pokémon had increased spawn rates in the wild:

In addition, some Dark-type Pokémon from the first part of the event had increased spawn rates still.

7-km Pokémon Eggs obtained during the event would hatch more of these Pokémon:

The following Raid Bosses were available for a time of this event:

Field Research event tasks
There were several Field Research tasks exclusively for the duration of the second part of the event.

Avatar items
These Sylveon-inspired avatar items were released with the second part of the event:

Stickers
These stickers were released with the beginning of the event: