I just finished reviewing the level zero version of this card (see Mists of R'lyeh), so figured I'd take a look at the all-grown-up variety. On its own, I think it's pretty great -- for two resources, you get an asset that almost guarantees you five successful evade checks, and some additional mobility to boot. But of course, the real question is not whether this card is good, but whether it is so much better than the original Mists that we'd pay 4xp to upgrade into it. And I think the answer there is no.
This card is identical to the level zero version but for two changes: you get an additional charge, and you get a hefty +3 to the evade check.
Let's take the extra charge: how often are mystics going to need to evade five times in a scenario? Rarely, I would think. So while the insurance is nice, I think I'd prefer to use my xp on other things.
How about the +3 boost? Obviously that is much appreciated. A 4 on 3 check feels very different than a 7 on 3 check. But again, I wonder if it is really worth a massive 4xp. I feel like I could keep the original Mists make do with some static will boosts and the odd pitch from the hand.
In short, this card seems a little TOO premium. I might opt for a trim that provides, say, a +2 to the will check and no extra charges for 2xp. But this one tries to sell me more than I really need.