It’s happening the weekend Destiny Soldiers is released.

It’s being held August 6th to 7th, 2016

You have to buy 5 packs of Destiny Soldiers to enter.

3 Rounds of 1 Duel Matches.

It’s an update of last Month’s Concept Duel format.

With the following update:

Yuri:
You must use 3 copies of the following: “Predator Plant Fly Hell”, “Predator Plant Moray Nepenthes”, “Predator Plant Squid Drosera”
You can only have Plant-Type Monsters in your Main Deck
You must have 2 or more copies of “Polymerization” in your Main Deck

Source