Talk:Proving Grounds/@comment-93.200.251.180-20120630092111/@comment-1902684-20120630110707

they made it a mix since ARAM favors poke teams a little to much and with the map how it is it would only further solidify that, so they mixed it so that melee's and bruisers could get a leg in. The exp over time and gold per aren't as high as ARAB and the matches may not last as long, so carries don't completely dominate with full builds after turtling for a bit.