Excalibur

Effectively a super transformation of Caliburn the Sword, Excalibur (エクスカリバー Ekusukaribā) is the most powerful magical item within the Arthurian realm of Sonic and the Black Knight, as the strongest of the Sacred Swords.

Caliburn's transformation to Excalibur was caused due to Sonic's willpower. His "never give up" attitude rekindled the light of the Sacred Swords, and they were both empowered. Using the Sacred Swords, Caliburn transformed into Excalibur and Sonic transformed into Excalibur Sonic to fight the Dark Queen, Merlina the Sorceress' powered up form. Excalibur has rubies in its pulled back hilt, and a glowing outer blade around Caliburn's physical blade.

Scabbard of Excalibur


The Scabbard of Excalibur (エクスカリバーの鞘 Ekusukaribā no Saya) is essentially the cause of all Grand Kingdom's woes in the first part of Sonic and the Black Knight's storyline. Given to King Arthur (during his noble days) by Nimue, Lady of the Lake, the scabbard bestowed immortality upon its bearer - a great power which corrupted the once just and valiant ruler into a demon-summoning tyrant. Sonic's quest across the kingdom, from Misty Lake to Faraway Avalon, sees him gathering the skills, knowledge, and above all, the sacred swords, which were all necessary to counteract the power of the Scabbard and thus be able to slay King Arthur.

Quotes

 * "Can't you get in close some how? We'd have a good chance to win if you could close the gap."
 * "Listen carefully, timing is everything. Swing your word at exactly the right moment."
 * "You must wait for your chance to close in for the kill."
 * "Now, go all out with Soul Surge."
 * "Don't underestimate Excalibur reborn."
 * "I am going to teach you the error of your ways!"
 * "Everything must have it's end and we will be yours!"
 * "Foolish wizard, you are willing to sacrifice countless lives just to avoid your own sorrow!?"
 * "Hmph! You are mistaken if you think this is the limit of Excalibur's power!"
 * "Do you honsetly think such a world would function properly?"
 * "She appears to be worn down, we might be able to get through to her now."
 * "There is nothing Excalibur can't cut through!"

Trivia

 * On the hilt of Excalibur, the rubied hilt now resembles a crown, as well as the Black Knight's helmet. This is a reference to how Excalibur is the legendary sword of King Arthur, and Sonic just so happens to be the King Arthur of the game.
 * The power of Excalibur's Scabbard are similar to the real Arthurean Legends, except in the legends, the Scabbard would prevent any wound from bleeding or prevent death from a mortal wound. In the game, the Scabbard only prevents all wounds.