Talk:Leona/@comment-4490167-20111124072333/@comment-124.148.196.10-20111125142857

A buff is simply any changes that Riot makes on a champion to improve its performance and make it better in game. For example, they might increase the AP ratio on leona's ulti by .1 or extend the stun duration. That is what you would call a buff. Nerfs are the opposite of buffs, over-powered champs usually get nerfs. Both buffs and nerfs usually happen on patch day.