An assist is the action of helping an allied champion kill someone. You can either score an assist by hitting (without killing) the champion in the last 10 seconds before their death, or by contributing passively during this period of time.

When a champion is killed, the killer gets a certain amount of gold, while 50% of that amount is divided up among everyone who got an assist on it.

Secondary System

Champions also gain assists on kills if they:
Champions will not gain assists if they:

Triggering effects with assists

Champion abilities, items and runes that trigger an effect with an assist can be seen on the takedown page.

See Also