Keyblade Challenge is a recurring Event in Kingdom Hearts Unchained χ / Union χ, in which players are restricted to using specific Keyblades.

Keyblade Challenge #1

 
 

The first Keyblade Challenge consists of fifteen quests. It was available from May 10 to 16, 2018.

Keyblade Challenge #2

 
 

The second Keyblade Challenge consists of fifteen quests. It was available from May 17 to 23, 2018.

Keyblade Challenge #3

 
 
 

The third Keyblade Challenge consists of fifteen quests, split over three banners. It was available from May 23 to 29, 2018.

Keyblade Challenge #4

 
 

The fourth Keyblade Challenge consists of fifteen quests. It was available from May 24 to 31, 2018.