The Campaign Event is Jan 1st~Jun 30th 2019

Buy 3 of any of the three Memories Duel King sets, then send in the Korean game 15th Anniversary logo at the top right of the boxes to Daewon and they’ll send you 1 of 4 mats at random.

3 of them are the Yugi+Osiris/Kaiba+Obelisk/Marik+Ra mats, the last one is a currently unrevealed one

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