Honor is a point system introduced to League of Legends on October 1st, 2012. The Honor system was created to incentivize positive behavior among the League of Legends community and identify summoners that would be considered pillars of the community. Currently, Honor does not provide any rewards or perks other than the points themselves, though this could change in the future.
Players can only honor other players in matchmade games (including Co-op vs AI), as this feature is unavailable for Custom games.
- Summoners who would be honored through this category are those that have a positive impact on your game and make the match enjoyable, win or lose.
- This category is for summoners that share their know-how and actively help other players improve their gameplay.
- Honorable Opponent:
- Honorable Opponents are players from the opposing team that remain humble in victory or graceful in defeat and/or behave in a positive manner throughout the game. This is the only category where a player can receive a crest without any points in the other categories. The crest awarded is red.
- This category honors players that put the team ahead of themselves. This includes anything from forming great plans, helping struggling lanes recuperate, and more.
Honoring a Player
Honor allows you to acknowledge other summoners that have had a positive role in any of your matchmade games. Similarly to reporting a player for negative behavior, you can honor others at the result screen at the end of a match. By clicking on the green "Thumbs Up" button next to a summoner's name, you will be given a choice out of three of the honor categories for allied players, or you may select "Honorable Opponent" when honoring enemy players. Selecting one of the options will grant that player honor in the selected category. Honoring a player makes it impossible to report the same player for negative behavior. Inversely, reporting a player makes it impossible to honor that same player.
Do note that every summoner has a limited amount of honor to give, which is dependent on the number of matchmade games you play. This is a safety measure put in place to prevent players from trading honor or "farming" it. Players using the system responsibly and as intended will never run out of honor to hand out. Honoring players at every opportunity or trading honor will easily make you reach this limit.
Honoring friends is completely acceptable and it is encouraged if the summoner in question is truly being an honorable player. On the other hand, constantly granting honor to the same person after each match will be detected by the system and may involve consequences. In terms of unlocking crests, players will effectively be granted a different amount of honor depending on who honored them. For instance, a player that was honored by a stranger in a matchmade game will count more towards a crest than a player that was honored by a friend that they queued with, even though the counter goes up by one in both cases.
You can see your Honor, separated into the four categories, on your summoner profile. Honor is displayed directly above your Stats Overview and shows each category's individual values. This bar is visible to all players that view your profile, and you can see others' honor as well by visiting their summoner profile.
Honor is not a currency and cannot be spent, and it is not set to innately decay over time. The only way to lose honor is through negative actions. Ways to lose honor include, but are not limited to, the following:
- Trading or selling honor:
- Mentioning, in-game, that you will honor others if you are honored in return is considered a punishable offense and should be reported to the tribunal under the Spamming category.
- Riot staff may also detect this and take action without the input of the tribunal.
- The Tribunal:
- When a player is punished by the tribunal their honor drops down to zero. Note that having a case in the tribunal does not imply a loss of honor, only being punished will remove it.
- Any player that has been punished by the tribunal may still gain honor in the regular manner after their punishment has ended.
Crests and Ribbons
When a player has consistently received honor in the appropriate categories, they will be presented with an animation on their summoner profile and be awarded a crest. For Honorable Opponent, this is achieved by consistently being honored in the honorable opponent category. For the remaining three crests, a combination of the honor categories must be achieved. The animations for the four crests can be seen here.
Although the official term is crest, many players refer to crests as ribbons due to their appearance. Only a single crest will be displayed at a time, even if a player has unlocked more than one crest. The crest displayed will be the rarest out of those that the player has unlocked. Crests are visible to other players during champion select and on the loading screen, where it will be placed on the top left corner of your box. There are four crests: Great Leader, Great Mentor, Great Teammate and Honorable Opponent. Honorable Opponent is the only one that appears visible for the enemy team. All crests are visible to spectators. As of the late October patch (Shadow Isle), Honorable Opponent has been made viewable to both the enemy team and the player's own team during both champion select and on the loading screen.
Crests are temporary rewards designed to encourage players to remain honorable even after receiving the recognition. As such, they can be lost if players stop acting positively and no longer receive honor. Being punished by the tribunal will also remove all crests from a player, similarly to honor points.
- "Crests aren't based on Honor counts in your profile.
- Honor assesses the value of all your exchanges to determine how Honorable you are compared to the rest of the population."
Lyte also stated that the crests besides the Honorable Opponent are not as straightforward, saying: 
- "Here's a secret, the base Honors (Friendly, Teamwork, Helpful, Honorable Opponent) are not 1:1 with the Crests of Honor.
- There's the Crest of Honor - Honorable Opponent that many have unlocked and yes, you just need Honorable Opponent Honors to unlock that. However, the other Crests are not so simple...
- In fact, has anyone figured out what the other Crests are even called? ;) That might give you a clue about how to earn them."
Great Mentor Crest - the crest is greenish blue - this is a combination of Helpful and Friendly
Supportive and helpful, a Summoner that teaches players about the league.Great Teammate Crest - the crest is green
Cooperative and works with teams to secure victory.Great Leader Crest - the crest is yellow
Leads teams to victory through great communication.
- ↑ Honor at leagueoflegends.com
- ↑ Status Kwoh explains the requirements for ribbons
- ↑ Reporting and Honoring cancel each other
- ↑ http://www.reddit.com/r/leagueoflegends/comments/14e9a4/honor_has_lost_its_sheen/c7cjum1
- ↑ http://na.leagueoflegends.com/board/showthread.php?p=32098178#32098178
- ↑ http://www.reddit.com/r/leagueoflegends/comments/14e9a4/honor_has_lost_its_sheen/c7cdhgt
- ↑ http://www.reddit.com/r/leagueoflegends/comments/14e9a4/honor_has_lost_its_sheen/c7ccywj
- ↑ http://www.reddit.com/r/leagueoflegends/comments/14e9a4/honor_has_lost_its_sheen/c7ccmji?context=3
- ↑ http://na.leagueoflegends.com/board/showthread.php?p=32098178#32098178
- ↑ Lyte on crests and honor
- ↑ 
- ↑ Status Kwoh explains some of the details of the crests on Reddit