LEGO Nexo Knights (2015)

S1E1 The Book of Monsters Part 1

At the graduation ceremony celebrating the new Knights of Knighton, Jestro the jester faces mockery due to his poor performance. Feeling dejected, he becomes entranced by the dark allure of the sinister Book of Monsters. In an attempt to thwart Jestro's descent into darkness, Merlok the Magician intervenes, wielding his most formidable magic spell to confront the burgeoning threat.