Interrupt him when you can your force kick, push, and stasis can stop his abilities cold, don't forget about saber ward, enure, or master strike, for awhile before fighting Angral I forgot about those abilities because overhead slash was near-uber, but when I suffered for it on the pre-Angral missions I picked it up using them again, also make sure you pop the biggest Might Stim you can and have a good trusty med-pack available. I beat him once I relearned the Guardian on my second try did something stupid the first. but don't worry DOC is coming very soon, when you get to next world rush you class quest and get DOC then as long as your aware of the Gold's you can kill them pretty reliably
I guess basically what I'm saying is pull out all the stops....