Sword Of Power
The Sword Of Power, sometimes also referred to as the Power Sword or the Sword of Grayskull, it is said that this is the most powerful sword in the universe, as it allows Adam to channel the very power that created the universe within Castle Grayskull to become He-Man. The sword can deflect any rays or blasts of magical or technological origin. It is for lack of a better word indestructible.
Origin #1 (Early Mini-Comics & Other Early Publications):
It originally started out as a mystical object in the early stories, in which Skeletor tries to obtain both halves and put them together in order to gain the "Ultimate Power in the Universe". In the beginning of the line, He-Man held one half and Skeletor held the other. He-Man's half of the Sword Of Power or the united Sword Of Power was the key to unlock the entrance of Castle Grayskull.
In the early DC Comics, the second half of the Sword Of Power was hidden away in Castle Grayskull, and the mini-series was his adventure to retrieve it for Skeletor, while he held the Goddess hostage. He-Man seeks out the three talisman to unlock the location of the sword, which ends with him combining the two halves, creating the ultimate Sword Of Power.
Origin #2 (Filmation Cartoons):
In the "Filmation Cartoon" He-Man and the Masters of the Universe, the Power Sword is given to Prince Adam by the Sorceress of Grayskull as the key to transforming into He-Man, "the Most Powerful Man in the Universe," and transforming his cowardly pet tiger, Cringer, into the fierce and brave Battle Cat. The war-cry with which Prince Adam thus transforms while holding the Power Sword above his head with his right hand begins, "By the power of Grayskull...." whereupon mystical lightning strikes the Power Sword and transforms him; He-Man then seizes the tip of the Power Sword's blade and completes the war-cry, "...I HAVE THE POWER!!!" There is no evidence of the Power Sword being halves in this version of the story. The weapon kept the same basic shape during most of the 1980s.
Origin #3 (MOTU UK Magazines)
In this origin of the Sword of Power, it is created, by Keclar, from a meteor, that crashed on ancient Eternia, called the Gem-Stone of Power. It's sister sword came from the same Gem-Stone of Power.
Origin #4 (1987 Live-Action Movie):
In the live action film, Masters of the Universe, the Prince Adam alter-ego is not explicitly shown to exist, and the Sword of Grayskull has a less prominent role. In some parts of the movie He-Man uses laser guns in addition to wielding his sword in close combat. He is also shown as being able to deflect laser beams with the blade in much the same manner as the classic cartoon. The sword serves an ambiguous purpose (if any) in gaining the Powers of Grayskull, as Skeletor has already taken the Sorceress hostage in the beginning of the film and is waiting for the Great Eye to open and give him godlike powers. However, he obtains it once he has captured He-Man and makes a particular point of declaring his possession of it, placing it in a special scabbard-like slot before the eye, possibly suggesting it serves some function in the process. When He-Man breaks free and attempts to retrieve the sword, Skeletor desperately tires to stop him.
The most explicit example of the sword's magical properties comes in the final battle between He-Man and Skeletor, where He-Man draws the sword from the aforementioned slot, while enduring energy attacks from the godlike Skeletor. When He-Man draws the sword out, he shouts "I have the power!" during which the sword glows and blue electricity coarses through He-Man (the film does not specify what this does - it may have healed him or boosted his strength for this fight). As he fights Skeletor, blue electricity from the sword and yellow electricity from Skeletor's staff appear as the weapons make contact, until finally the Power Sword smashes the Havoc Staff, causing Skeletor to lose his new powers and return to normal. At this point Skeletor draws his own black version of the mystic sword for the final stage of the duel, an obvious homage to the classic minicomics depicting Skeletor with one half of the Power Sword (although in this case it is black rather than purple, coordinated to match the character's switch in costume color from the original).
Origin #5 (MOTUC Bios):
In this version, the Sword Of Power combines all the interprations (accept for the live-action movie) to certain extent. It is said that the sword was held once by King Grayskull, Wun-Dar, Vikor and Oo-Larr (the people known as the "He-Men").
Trivia (Clawful94): The Sword Of Power was radically redesigned three times: for The New Adventures of He-Man, the 2002 remake of the Masters of the Universe and in the live-action movie.
MOTU Filmation Cartoon Appearances:
POP Filmation Cartoon Appearances:
Special Filmation Cartoon Appearances: