by James Eatock: http://bustatoons.blogspot.com/2010/06/he-mans-shield.html

Writers and animation directors must hate shields. In the Filmation series we never saw He-Man with the shield that came with his action figure. Yes, the shield appeared briefly in "She-Demon of Phantos" used by Prince Adam, but that does not really count. The same applies to She-Ra; she never had her toy shield, and would rarely transform her sword into a shield. When it came to The New Adventures of He-Man series we saw He-Man once or twice wield the shield that came with his action figure, but like previous shields it rarely if ever appeared again!