Arkham Nights page includes this image above, aptly named shub-400X300.png

I'm going out on a limb here and...

Very scary huge monster!

Johnny: You might remember that a post of that was a prize at NYC regionals. (Kellen got it)

Professor, that's right. I thought Kellen took the yog, which is not spoiled, but I described recently. And I thought I remembered a shub woods image picked up by John from Brooklyn / Michigan (AG / MU). Switched. You took Hastur, I took Cthulhu. Great to refer to the NYC classic! Way to represent the NYC Regionals crowd at worlds!