- In Arthurian legends, Percival is one of King Arthur's legendary Knights of the Round Table, whose father was also stated to (possibly) be King Pellinore. His sister is named Dindrane, and Sir Aglovale, Sir Lamorak, and Sir Tor were his brothers.
- In Arthurian legends it is said that Percival was one of King Arthur's most loyal knights, this could reflect its owner, Olivier Gaillard's loyalty and respect for Aichi Sendou.
- As stated in the Blaze Paladin lore, Percival was summoned to replace Blaster Blade in the altered timeline.
- Likewise, he has many things in common with Blaster Blade: he is the confidant of the King of Knights and is an elite knight of the Liberators. He also possesses a sword-like weapon which turns his emotions into Bluish Flame, much like Blaster Blade converts courage into power.
- This also reflects Olivier Gaillard's belief that he has inherited Aichi's will.
- Like Blaster Blade, Percival has the power to surpass himself and become a higher being. Just as Blaster Blade was able to evolve into Majesty Lord Blaster, Blaster Blade Burst, Exculpate the Blaster, and Star-vader, Blaster Joker, Percival was able to evolve into Prominence Core and Prominence Glare.
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