The latest developer journal on the official Champions Online site deals with PvP and something called B.A.S.H. Find out what that is below:

Sometimes, though, all of this organized team fighting is too constrained, and superhero battles royal make perfect sense in the Champions universe. In the Hero Games lineup, they're called B.A.S.H.: Battle Arena Super Heroes. The strategy in free-for-all games is more about choosing whom to engage when, so it's important to give players lots of space to choose their fights. Fliers in particular enjoy the fact that this map is outside, so the sky's the limit for their vertical movement! We do paint the other players on your mini-map, so there's never trouble finding somebody to fight if you're so inclined. Our free-for-all map is pulled right from Millennium City's seedy Westside district; the battle takes place in the streets, across the rooftops of condemned buildings, and inside a construction site. It's classic four-color superhero stuff.

Read the rest at the official site linked above.