I have witnessed the Paraxus only once, but it was glorious. I got behind the barrier and then I thought "I'm going to test it to see how much damage it does". I literally blew up a half second later. It was hilarious. Why did Blizzard have to nerf something fun? This is only an example of how Blizzard caves to people who can't be bothered by inconveniences.
The Paraxis now fires at player locations, allowing players to avoid the damage from the effect.