She-Ra: Princess of Power (1985)

S1E3 She-Ra Unchained

Hordak siphons He-Man’s strength to fuel his Magna beam, aiming to obliterate the Whispering Woods and everyone hiding there. As the weapon charges, Adora uncovers the painful reality of Hordak’s deception, realizing his true nature. With that revelation, she fully embraces her destiny, transforming into She-Ra for the first time to confront him, determined to save her friends and put an end to his devastating plan.