Sooo... On Boardgame Geek, someone made a suggestion that got me very excited.
Why not make a Nyarlathotep Variant where the drawing of a Mask causes various effects.
For a start, I think that if Nyarlathotep awakens, the investigators should immediately lose, but if someone comes up with a really crazy (and tough) idea for final combat, I'd want to hear that.
Begin suggestions for mask effects (permanent, temporary, stat changes, extra abilities).
I was also thinking of triggering a random mask search when the doom track hits six (so that at least one will be drawn each game).
Perhaps when a mask is placed in the outskirts it immediately replaces the lowest toughness non-mask monster on the board (first player chooses in case of a tie).
I have a few mask specific ideas, but I want to hear other peoples ideas first before I throw anything out :'D let's gooooo!