She-Ra: Princess of Power (1985)

S02E08 Day of the Flowers

As Adora and Adam join in the festivities of the Festival of Blossoms, an unexpected mishap occurs when Orko inadvertently causes the swords of power to vanish. Seizing the opportunity, Hordak unleashes the formidable Monstroids, the mightiest machines in existence, to assault Flower Mountain.