Attribute Battle Challenge

Attribute Battle Challenge (属性別 討伐ミッション, Zokusei-betsu Tōbatsu Misshon, lit. "Subjugation by Attribute Mission") is a series of six quests in Kingdom Hearts Unchained χ / Union χ, in which players need to use Medals of a specific attribute. It was available from March 25 to April 3, 2019 in both versions.

• Equipping Power Medals - 1/2
• Equipping Power Medals - 2/2
• Equipping Speed Medals - 1/2
• Equipping Speed Medals - 2/2
• Equipping Magic Medals - 1/2
• Equipping Magic Medals - 2/2