Pest Elimination: Divinations have shown that Silver Mark Locusts will shortly begin their swarming season in the east. A disciple in required to cull their populations before this begins. 20 Sect Points
This seems like a good job for us. If we pump it, we can spread our mists over eighty meters and then hit everything inside it with Dissonance.
A round or two of that should clear these things nicely.
That would give us 68 points that we could splurge on a Third Floor Art. To be fair, not the greatest need. Of our Arts, our core stuff needs well over two hundred successes to level up. Aside from Mirror(which needs over two hundred on its own), our Argent Arts are going to need a couple hundred between them. Thousand Ring Fortress needs a solid three hundred, and Abyssal Exhalation and Frozen Soul Serenade are still on low masteries. Not to mention Phantasmagoria which we haven't even started.
Even if we don't use it to get an Art immediately, it'll be nice to have on hand in case something comes up like maybe getting an Art for Flying Swords. Alternately, we might check out a big old book of Formations to mess around with.