I was happy to hit r3 on my prophecies only ele account to get the ebon vanguard merchant but then realized most of it didn't mean much. A few rez scrolls might possibly one day be useful.
Those res scrolls, powerstones and summoning stones might be how I bruteforce my way through 4 and 6 man HM missions ._.
Too bad there aren't any ways to get Asura/Norn/Delver without entering EotN. Got really excited for about 45 seconds though when I realized you can 8/13 pages of Young Heroes of Tyria and max Sunspear and Lightbringer that way, followed by a deep sadness when I stopped being illiterate and realized I'd have to turn in the book in the Sunspear Great Hall and Chantry of Secrets...hopes=dashed