
One strike against this card is that it is a skill card with a single willpower pip. The effect is, conditionally, heal 1 horror, but mystics generally have more trouble with physical damage than with horror. You would generally want 2 pips from a skill card, like Guts or from assets like Arcane Studies(2).
You can get single pips from about half of the mystic assets or events, with the upside of having another use for the card when the current problem is not the next will power test. Better skip this one and invest in Fearless(2) later, or just play allies and Painkillers to soak horror.