A common problem I find in the arenas is losing because your opponent had a very poor connection. One moment you are at full/partial health, and the next, your opponent has come flying at you and you are dead. This is because they are lagging, and it can ruin your arena rating. My proposal is to impose a ping requirement to queue in rated arenas. While this could disadvantage people with poor Internet service providers, I feel that it should not be strongly-connected competitors' problem.