League-of-legends – Does League of Legends track Co-op vs. AI

An ace occurs when the last player of the opposing team dies. It means that all 5 of them are dead at the same time, whether it be for 1 second or much longer. The ace is attributed to whoever scores the killing blow on the last champion to die, although there is no extra bonus for it.

If you get an ace during a team fight in late game, usually you can push and win the game right then and there. Other times, you get an ace by killing their lone defender right before the other 4 of them spawn, in which case it's less meaningful.

If you referred 10.000 friends to League of Legends until April 25th 2012 you were able to fly to Riot Games HQ and design a champion with them.

Source: RaF Design a Champ

However this was removed and now there is no official way to suggest Riot Games Champions you "invented", except for the forum.

In the forums you can post under the Champion/Item Feedback section your ideas and hope that it will get lots of upvotes, so a Riot employee looks at it, but it is very unlikely that a community-created champion sees the light of Summoner's Rift.