The last player to strike the target champion is awarded with the kill, and all contributors within the last 10 seconds are awarded with an assist.
When a champion is killed, the killer receives a certain amount of Gold, while a reduced amount is shared between all the champions that assisted in the kill. See bounty for additional info. A champion with many consecutive deaths will award a significantly reduced bounty, while one with many consecutive kills will award a higher bounty. See Bounties for further detail.
If the champion killed has any transferable buffs ( or ), the killer champion gains all of these buffs and the duration of each buff is reset.
If a champion dies and hasn't been damaged nor been given a debuff by an enemy champion in the last 13 seconds, they are executed (extended to 20 seconds on ARAM). Otherwise, the kill is awarded to the enemy champion who last dealt damage or applied a debuff. Executions are caused by a turret, minion, or monster. An execution does not grant a bounty but still grants experience to nearby champions on the opposite team when it is caused by a turret or minion.
In some cases it could be strategically advantageous for a player to purposefully be executed as an alternative to dying from an enemy champion; in doing so, the enemy receives no gold. Doing this on ARAM allows you to visit the shop without granting kills to the enemy team.
Note that executions do not count as deaths for the purposes of resetting bounties, death streaks or kill streaks.
An execute is the process of killing a unit by dealing 100% of their current health as true damage (or magic damage) through the raw damage (or internalraw) source type. Executes destroy all shields before applying their damage, and will have no effect if the unit is invulnerable unless the source type is internalraw. Units that cannot have their health reduced below a certain amount (e.g. and ) will be set to 1 health from executes.
Most forms of executes only occur if the unit is below a specific health threshold.
The following contains all executes:
- Champion abilities
The effects of the following also execute, but only against minions:
The act of killing several champions within 10 seconds of each other (30 seconds to Penta Kill after a Quadra Kill if no enemy respawns). The following comments are shown: "Summoner" has slain "(slain name) Summoner" for a [...]!'
- Double Kill (2)
- Triple Kill (3)
- Quadra Kill (4)
- Penta Kill (5)
- Hexa Kill (6) Only on Hexakill.
Some footage from before the time where Hexakill was introduced showcases the possibility of achieving a Legendary Kill, which can occur after killing another enemy after a Penta Kill, on any gamemode other than Hexakill.
However this feature seems to have been removed from the game, and the time at which it occurred is uncertain.
An ace is defined as killing the last living champion of the enemy team. Scoring an ace is far easier than scoring a Penta Kill, since the only requisite is for the entire allied team to kill the enemy team, rather than one person killing the entire enemy team. There is no bonus associated with aces.
Both teams can be aced at the same time.
Teams earn gold rewards when they kill enemy champions. This reward is the bounty of the killed champion. The bounty of a champion depends on their number of consecutive kills or deaths. The number of consecutive kills a champion has is the number of times they have killed enemy champions since they last died or since the match began. The number of consecutive deaths a champion has is the number of times they have died since they last killed an enemy champion or since the match began. The more consecutive kills a champion has, the bigger their bounty. The more consecutive deaths a champion has, the smaller their bounty.
Bounties are divided into two parts:
- Kill bounty: Earned by the champion who deals the killing blow.
- Assist bounty: Shared evenly among the champions who assist in the kill.
Each part of the bounty is calculated using a system of tiers numbered from -9 to 8. Kill bounties in higher tiers are bigger. Each champion starts the match in the bounty tier 0 and moves to other tiers as they kill enemies or die. Consecutive kills move a champion to a higher tier, while consecutive deaths move them to a lower tier.
This table shows the number of consecutive kills or deaths required to access each tier, and the bounty earned by killing a champion in that tier:
- CS gold = amount of gold earned from minions, monsters and support items.
- Tier resets to 0 when dying while being on a positive tier or when doing a kill on a negative tier.
- Champions with negative tiers also have their tier increased by 1 for each 1000 gold earned from CS or by earning an assist.
- First blood gives 100 bonus gold to the kill bounty and 50 to the assist bounty.
- If, since their last death, a champion has earned 300 more gold from CS than the enemy team's average during that time, their bounty increases by 50 gold, plus another 50 gold for each additional 200 gold their advantage grows by thereafter. The amount is dynamic and is reduced if the player loses the advantage.
- Average is determined by dividing the enemy team's CS gold by 4.3, rather than five, based on the four sources of income on Summoner's Rift (top/mid/bot/jungle) + support item income. Modes with smaller teams divide by the number of champs per team instead (ex. 3 for Twisted Treeline).
- If you die with less CS gold than the enemy team's average, you'll respawn with a buffer equal to the difference. You won't start accruing a CS gold bounty until you've used up the buffer.
- All bounties, excluding base bounty, of a team are reduced by 20% if their total team gold is 3% lower than the opposing team's gold. The reduction is increased to and further increased to .
- Total assist bounty is reduced to .
- Bounties do not increase mid-combat. If a champion earns multiple kills and then immediately dies, those kills will count toward their next death instead.
- A single kill cannot grant more than 1000 total gold to the killer.
- Since a champion's bounty can stack to greater values, any remaining gold will carry over. Because of this, enemies can be 'Shutdown' multiple times in succession.
- Bounties over 150 gold (before bounty reduction from team gold deficit) are visible in the scoreboard to both allies and enemies.
Triggering effects with kills
- Champion abilities, items and runes that trigger an effect with a kill or assist can be seen on the takedown page.
The following abilities will trigger an effect upon killing an enemy champion, they will not trigger with an assist:
Any unit kill
The following abilities will trigger an effect upon killing any unit:
Any unit kill
The following items will trigger an effect upon killing any unit:
The following items will trigger an effect upon killing a minion:
The following items will trigger an effect upon killing a monster: