I'll split my comments for the foundations of what you've laid out (congrats on submitting what you have instead of DNF'ing!) into premise + the generator.
Premise: Great start for a spooky, looming entity. I found myself a little curious about the death masks, which I'm sure illustrations will help with. I will caution that you may need more space than what you have set aside currently, to fully flesh out a lantern extinguishing mechanic, plus a statblock, plus an escalation mechanic.
Generator: I can appreciate using multiple polyhedral dice that most people generally have, but with Fatherfog as the base-frame, I encourage you to use tables with 5-lines, 10-lines, or 100-brief phrases (1d10 halved for 1d5, 1d10, and 1d100) . I like what you have for weather and terrain, and both could convert to a 1d5 roll.