This is another one of the lessons from Ben Lindholms "10 Ways to Play Arpeggios" tutorial. For some reason this one gave me quite a bit of trouble when learning it. It's probably because I wasn't used to palm muting while alternating picking. But I finally got it!
I suggest learning it because it's a great alternate picking exercise and it sounds awesome. :)
https://www.youtube.com/watch?v=5hSUty8Z2eQ&feature=youtu.be