Hexakill

Hexakill is a new gamemode, currently being tested on the Public Beta servers, that is played on Summoner's Rift with six players on each team instead of the regular five.

The name comes from the new multi-kill possible with six players, where the "Hexakill" will be announced when one player scores six kills in quick succession (the previous limit was five being a Pentakill).Note that a Hexakill can only be scored in the Hexakill gamemode.