Jude's Memento is actually a clock's hand. It's one of the six keys needed to unlock an event in the Fairy Tail franchise.
After Jude Heartphilia died, his will instructs Michelle Lobster to bring his memento to Lucy Heartphilia. At first, Lucy and the others don't know what it is until Legion attacks Fairy Tail to steal the memento.
|Thing Name||Jude's Memento|
|Aliases||Key of the Starry Sky
|1st manga book:|
|1st anime episode:||Fairy Tail #128|
|1st anime movie:|