I saw a couple posts slagging on Stranger Things for the "roll a 13" line to hurt Demogorgon.

I saw a couple posts slagging on Stranger Things for the "roll a 13" line to hurt Demogorgon. The kids are house-ruling, dorks. Demogorgon has a 95% resistance to spells. The kids know percentile dice suck, so they made that into a base roll of 20 on a d20. Now subtract the spellcaster's level, presumably 7, therefore Will needs to roll a 13.

That's a pretty good house rule.

Also, don't google Stranger Things Demogorgon because you will be spoiled by the image search results. Like I was.