Originally, there's a stat and a basic move, then a new hold-economy, and yeah. It was lame.
Instead, I came up with this:
When you channel the Field to commit acts inhuman and graceless, tell the Field what you want, what you need.
You can't refuse its gifts; your reciprocity is expected in equal measure.
What it asks in return is dictated by your Moth.
Pick a flavour:
It seeks to be the only thing in your existence. It questions your commitments. It demands fidelity.
Offer up more bodies, more wealth, the firstlings and the fat thereof. It wants to suck the whole of your being out with its caresses.
It pulls you in closer, deeper, softer, wetter, further and further with the waters of the birth push.
Hush, beloved. We'll see to it that there is blood to paid for crossing us.
It transforms your body into its home; your soul its skin.
It rarely cares for your petty wants and desires, sleeve.
No one can know about us. They'll ruin it; they can't be trusted.