In this event, only Fairy and Fiend monsters are allowed. The event will begin on July 19th until July 31st.

You can earn medals by playing Duels and you can obtain the following rewards according to the number of medals you have:
50 to 11000 medal threshold: a total of 1800 gems
12000 to 21000 medal threshold: a total of 20 Legacy Pack tickets
Additionally, at the following thresholds, you can get these rewards:

The additional Forbidden/Limited List changes for the event are as follows:

Forbidden:
All monsters, except Fairy and Fiend monsters

Archlord Krystia
Artifact Scythe
Barrier Statue of the Abyss
Barrier Statue of the Heavens
Garbage Lord
Giant Kozaky
Needle Ball
Vanity’s Fiend
Vanity’s Ruler

Black Garden
Card of Demise
Cauldron of the old Man
Chain Strike
Cybernetic Fusion Support
Domain of the True Monarchs
Dragonoid Generator
Hippo Carnival
Kaiser Colosseum
Messenger of Peace
Misfortune
Necrovalley
Performapal Popperup
Secret Village of the Spellcasters
Spellbound
Super Hippo Carnival
Terminal World
Terminal World NEXT
The Monarchs Stormforth
White Veil
Zombie World

And the Band Played On
Anti-Spell Fragrance
Appointer of the Red Lotus
Bad Luck Blast
Bad Reaction to Simochi
Banquet of Millions
Blasting the Ruins
Blooming of the Darkest Rose
Ceasefire
Chain Burst
D.D. Dynamite
Deck Devastation Virus
Destruction of Destiny
DNA Surgery
Eradicator Epidemic Virus
Extinction on Schedule
Gozen Match
Kozaky’s Self-Destruct Button
Lunalight Serenade Dance
Mistake
Ojama Duo
Ojama Trio
Phantasm Spiral Battle
Phantasm Spiral Power
Relay Soul
Ring of Destruction
Secret Barrel
Skill Drain
Summon Limit
The Monarchs Erupt
There Can Be Only One

Limited:
D/D/D Flame King Genghis
Kelbek the Ancient Vanguard

Runick Fountain
Runick Tip

Dogmatika Punishment
Just Desserts
Rivalry of Warlords