Create a seed on non-euclidean bismuth with the properties that it will grow into a mighty crystal tree of starry void, it's bark leaking the worlds anima vitae, Its branches sprouting fruits of living flesh. This flesh will merge with anything living, its own type within moments and other living beings in days, Slowly until it is indistinguishable from each other.(psychological fear FTW.)
The flesh will be minorly sentient, Able to sense our wants and act accordingly.
Plant one such seed within our cave and allow its flesh to grow into our base, Let it crawl over the cave walls, Merge with our cathedral and grow outwards.
Get another seed (whether by throwing or manifesting it directly) into the village's well, Then accelerate its growth to the amount it would require to grow out of the well and for its flesh to cover the whole village, Then have it Consume the whole village in one gluttonous move. Like an inverted maw from the void. When there is nothing left retreat everything except a tiny sapling below the ground and have our central tree(in our cave) branch out, Connecting the two then move all the flesh to our cave.
All beings who die on this fleshy field will be incorporated into it almost immediatly, Then hidden under a thin layer of our "false" flesh when inactive/dormant. Ripping itself out of the fleshy grounds beneath our enemy's feet and grabbing hold of them. Pinning them to the flesh for days until they merge with it, Unable to ever escape or die from starvation.
Also, Merge our physical being to the flesh structure we call a "cathedral" such that we can sense anything within it.
Do this whether they join us or not, But only do it with the villagers inside the village if they don't join us.