DeNA has announced that the Legendary Arena Entei is back and it will be available from June 8th, 2021 at 11:00 p.m. until June 22nd, 2021 at 10:59 p.m. The Triple Feature Spotlight Scout will also be available during that same time period in Pokémon Masters EX.

Legendary Arena Entei

Legendary Arena: Entei is back! Starting today, Legendary Arena: Entei returns! New Event Missions have been added along with its return! You can complete higher difficulty missions to get Gems!

Date/Time

June 8, 2021 at 11:00 p.m. - June 22, 2021 at 10:59 p.m.

Legendary Arena

The Legendary Arena is a special battle area where you can form multiple teams and take on the challenge using a set number of sync pairs. You can complete the related missions to earn Medals that can only be obtained here!

Important

• To attempt Legendary Arena missions, you must have completed Main Story Chapter 2: Defeat Team Break! (Normal) in single-player.
• Your area info and mission completion data will be saved at the event’s conclusion and will be used the next time this event returns.
• Check out the About the Legendary Arena notification for more details and other important information. You can also view these details by tapping the Information button on the main area info screen.
• If you'd like some pointers specific to this challenge, check out the battle strategy tips. You can view these tips from the battle difficulty selection screen.
• While Legendary Arena missions will also be displayed on the General missions screen, they cannot be attempted outside of the challenge period.
• The event missions held at the same time as the Legendary Arena do not count toward the completion requirements for Legendary Arena Mission Completion Rewards.
• All completion rewards for event missions held at the same time as the Legendary Arena must be claimed within three days of the mission period ending.
• The time period and featured content are subject to change without notice.

Source: https://pokemonmasters-game.com/en-US/announcements/Event_3050_2W_3

Triple Feature Spotlight Scout

Increased chance to scout Sygna Suit Grimsley, Wallace, and Kris! Triple Feature Spotlight Scout Under Way! Featuring 5★ Sygna Suit Grimsley & Sharpedo, 5★ Wallace & Milotic, and 5★ Kris & Totodile! In this sync pair scout, you can use the daily discount for only 100 paid gems per scout up to 3 times per day. You can also receive up to 15 Custom ★ Power-Ups for 5★ Sygna Suit Grimsley & Sharpedo, 5★ Wallace & Milotic, and ★5 Kris ＆ Totodile depending on how many times you scout them using this sync pair scout!

About Sygna Suit Grimsley & Sharpedo

Surf’s up with Grimsley sporting a new sygna suit as he overwhelms opponents with fierce attacks!

About Wallace & Milotic

This Gym Leader from Hoenn uses a wide array of moves to adapt to the situation at hand!

About Kris & Totodile

The Trainer in this Water-type Physical Strike sync pair made a name for herself in the Johto region!

Sync Pair Scout + Present!

Receive the following items as presents according to the number of times you obtain 5★ Sygna Suit Grimsley & Sharpedo, 5★ Wallace & Milotic, and 5★ Kris & Totodile from this sync pair scout!

1 Time(s)

• Acquired sync pair's Custom ★ Power-Up ×3

2 Time(s)

• Acquired sync pair's Custom ★ Power-Up ×3

3 Time(s)

• Acquired sync pair's Custom ★ Power-Up ×3

4 Time(s)

• Acquired sync pair's Custom ★ Power-Up ×3

5 Time(s)

• Acquired sync pair's Custom ★ Power-Up ×3

Date/Time

June 8, 2021 at 11:00 p.m. - June 22, 2021 at 10:59 p.m.

Important

• The sync pairs featured in this sync pair scout may also appear in future sync pair scouts.
• Sync pairs other than the ones mentioned above may appear as well.
• You will not receive the present if you obtain 5★ Sygna Suit Grimsley & Sharpedo, 5★ Wallace & Milotic, or 5★ Kris & Totodile outside of the scout period.
• The applicable presents will be sent to you upon obtaining 5★ Sygna Suit Grimsley & Sharpedo, 5★ Wallace & Milotic, or 5★ Kris & Totodile in this sync pair scout during the scout period.
• You will not receive any additional presents if you obtain 5★ Sygna Suit Grimsley & Sharpedo, 5★ Wallace & Milotic, or 5★ Kris & Totodile from this sync pair scout more than the specified number of times during the scout period. Note: Presents will be sent to the Temp Storage section of the Present Box.
• Please note that you cannot have two or more sync pairs that include Trainers with the same name in your team.
• The number of times the daily discount (100 paid Gems per scout) can be used is reset each day. Reset Time: 11:00 p.m.
• Featured sync pairs have a higher chance of appearing than non-featured 5★ sync pairs.
• To check the available sync pairs and their respective offering rates, go to the Offering Rate section on the Sync Pair Scout screen.
• Please read the Notes section under Offering Rate on the Sync Pair Scout screen before using the feature.
• The time period and featured content are subject to change without notice.

Source: https://pokemonmasters-game.com/en-US/announcements/BSearch_3050_2W_1