|Champion||Background||Strategy||Skins & Trivia|
- Jayce was designed by FeralPony and Hephastopheles.
- When Jayce was under production, his name was "Apollo."
- The name and Jayce's character traits match the philosophical characteristics that are based on certain features of . The Apollonian is based on individuality, and the human form which is used to represent the individual and make one being distinct from all the others. It celebrates human creativity through reason and logical thinking.
- Jayce is voiced by Trevor Devall.
- Jayce is the 100th champion for League of Legends.
- He is the third champion to be initial released with an recall animation after Darius and Draven.
- After the community indicated that Jayce's lore made Viktor seem "like a Saturday morning cartoon villain", his lore was rewritten to better reflect how Riot viewed their rivalry.
- This makes Jayce the second champion, after Shyvana, to have their lore changed due to community feedback.
- Jayce is the second champion to have his ultimate available at level 1, the first being Karma, the third being Elise, and the fourth being Nidalee.
- Jayce is the first champion having access to 8 abilities (ultimate in each stance should be counted separately).
- Jayce is one of the four champions who is labelled as both melee and ranged, the others being Kayle, Elise and Nidalee.
- Jayce's dance is a reference to here.
, which is a song by M.C. Hammer. A side-by-side comparison can be seen
- Jayce's shares his dance reference with Malzahar's.
- Also, Mercury Cannon Hammer can be simplified to M.C. Hammer.
- Jayce may also be linked to 'the Apprentice' from the game
- He has melee and ranged attacks, and look similar, as well both can fire of a blue ball of power.
- In addition, both have the title of defender.
- Jayce's moniker the "Defender of Tomorrow" is a reference to , and bears a slight resemblance to Superman.
- Jayce appears to have a dominant left eye and a dominant right hand, as he holds his cannon at the base with his left hand, as a left eyed person would with a rifle regardless of left or right hand dominance, while he holds his hammer with his right hand near the top of the hammer as a right hander would.
- Jayce's "Shocking" is likely a reference to Goldfinger.
- Jayce shares a quote with Viktor: "Pave the way."
- His quote "Hammer time" is a reference to the MC Hammer song U Can't Touch This.
- His quote "Energize" might be a reference to order to teletransport.
- Classic skin is a possible reference to hammerites or mechanists, both from the series.
- This skin bears resemblance to Full Machine Viktor.
- His voice has an added voice effect similar to what Viktor has. This possibly to reflects the important role that Viktor plays in Jayce's lore.
- His suit is similar to the suit of from the franchise.
- It may also be a reference to Iron Man, as the voice filter is similar to that used by the in the movies. Jayce also shares a similar backstory as an inventor who turns to being a hero.
- The lights on his hammer resembles Iron Man's .
- It may also be a reference to the game trilogy .
- It may also be a reference to the from the .
- It may also be a reference to the movie (but only by name).
- It may also be a reference to the Fullmetal Alchemist franchise (but only by name).
- He also shares this theme with Viktor, Pantheon and Rammus.
- This skin is a tribute to Valentine's Day of 2013.
- His suit with the white coat and red rose also may be a possible reference to
- He bears striking resemblance of a French actor, director, producer and comedian, .
- He bears resemblance of the character Roger Smith from the anime .
- He may also be inspired by the character of from the novel .
- His recall animation is inspired by dance moves.
- Both Full Metal and Debonair skins can be considered references to - Tony Stark. Full Metal Jayce resembles Iron Man while Debonair Jayce resembles Tony Stark.
- He shares this theme with Vi and Ezreal.
- Viktor defeated Jayce and stole a powerful arcane crystal to power his creations. Jayce later created the Mercury Hammer and counter assaulted Viktor's laboratory, destroying Viktor's prototype weapons.
- Jayce has created The Resistance which battles Viktor's plan of the Glorious Evolution.
- He is a close friend of Vi, Caitlyn and Ezreal.