What is ARAM?
ARAM (All Random All Mid) has been a fairly popular "game mode" for League of Legends for roughly two years now. Through the early stages, the community developed the unwritten rules of ARAM, such as no backing to heal or shop, no leaving the lane, and no going into the jungle or side paths. Unfortunately, there was a lot of flaws for the make-shift mode on Summoner's Rift. The game mode had so much more potential.
The Proving Grounds
With the recent release of The Proving Grounds map, ARAM entered a new era. Riot addressed some of the limitations of ARAM on Summoner's Rift, by implementing a lot of the fundamental rules of the mode directly into the map. No longer can you shop once you leave base. The summoning platform no longer heals. There is nothing but a singular lane. Additionally, it adopted some of the mentality from Dominion, with starting at a higher level, heightened ambient gold, ambient experience and shorter respawns. Now there is a dedicated map for ARAM lovers, and it's more fun than ever.