LEGO Ninjago: Day of the Departed
When Cole returns to Yang's haunted temple to seek revenge on the former Airjitzu Master who turned him into a ghost, he accidentally uses a powerful Dark Magic blade that unleashes the spectral forms of Ninjago's greatest villains.
Starring
Watch "LEGO Ninjago: Day of the Departed" on Tubi TV released in 2017. It's a animation movie, and has a rating of 7.2 out of 10 from Imdb which is usually fine for this kind of movie, and is currently available to watch for free.