I am not sold on this suite of 2XP upgrades to the Level-0 Neutrals, but, apparently, a lot of people love them. I can admit that Mystics are not exactly swimming in card draw, and a chance to get two cards for a fairly easy test on any of the "first upgrade utility spells" (Shrivelling (3), Azure Flame (3), Rite of Seeking (2), Wither (4), etc) would be helpful to most Mystics. Once you are testing 10, getting 2 up isn't that hard.
Edit: On review, Silas can take this and might very well like to to shore up his kind of shaky .