It doesn't invoke flames! It's image enhancer. It is supposed to: increase image contrast, increase saturation and exaggerate details. Planned to use it to spice up balanced images.
I trained it on Velvet Pony, but it seems to work with any XL or Pony checkpoint. Training set was realistic, so it may impact that too.
I'm getting good results with moderate weight, 0.2-0.4. Negative weight is also a viable option.