I think I'd rather go for range:eye, but that doesn't seem possible if the ghosts aren't aware of us. Before I choose an effect, let me ask this: with the skills listed above, what do I know about ghosts and other Mentem creatures? What could I look for within the spont'd spell range that would give some clue as to the spirit's powers? For instance, if I try to sense the current emotion of a ghost, would that give me some clue as to its powers?
Is there a spont by which I could directly measure their Might?
I memorized ReVi vs Faerie and ReVi vs Infernal, because Vim wards trump Form-based, as near as I can tell. They're more versatile and seem to have no downside. I can invent a single ReVi vs Faeries, versus a different Re(Fo) for each type of faerie. When designing the character
Okay, then! Patrick will draw a 5-foot diameter circle (I'm picturing him drawing it with a sword-length stick, or something) in their path and cast Ward Against Faeries, ReVi 10 (Touch, FFM - Ring shifted down to Diameter, Circle). His spell is accompanied by the sound of rushing water.
Re 14 + Vi 5 + Ward Focus 5 + Sta 2 + Circles 3 + Aura ? + die 5 = 34 + Aura vs 10.
The circle will ward against Faeries of Might 15 or less for a diameter. After observing their behavior now for a handful of minutes, he'll go over to a slightly different spot and draw another 5-foot circle in the midst of their path, only this time casting Arcane Ward Vs Demons, ReVi 20 (Touch, Ring, FFM- Arcane Circle shifted down to Circle), using the same totals as above:
Re 14 + Vi 5 + Ward Focus 5 + Sta 2 + Circles 3 + Aura ? + die 9 = 38 + Aura vs 10.
A tide of magic flows out from his hand, spreading out in two directions before invigorating the circle, whereupon the circle's interior seems to wash away, revealing a complex pattern of hexagons filling the entire circle. The circle will ward against Infernal creatures of Might 20 or less until the circle is broken.