ARG just All Random Grounds..

I actually really like AR. It's simple enough and it keeps the important part of the name.

A little bit overboard on the explanation past that, but I'd like to point out that AR is shorter than ARAM just like the Proving Grounds is a smaller map than Summoner's Rift, and that "All Random" is really all you need to know when playing a game of that type on the Proving Grounds anyway, it being a 1 lane map and all.

I like my custom game name like I like my console games. JRPG (Just Random Proving Grounds)

We called it ARAT in testing - All Random All Tutorial.

Murderbridge works just as well though.

I've been going with ARPG, but Murderbridge sounds just fine too.

ART!

All random tutorial.

PGAR or ARPG would work fine though.

...Or Murderbridge >.>

The Pitt or The Bridge

Murrrdarrrrrr buridge!!!!