Hellish Rebuke

This is worse then magic initiate. And by no means worth sacrificing an ability score increase.

Yeah, no duh.  This isn't a real feat, I just built it as a feat because it was easier to make as an add-on to a character that normally wouldn't have access to this ability using the D&DB character builder.  But thanks for the comment, it was SUPER helpful.  

Then why did you publish it? You do know that you can not publish feats, right?

People complaining about a helpful thing. I needed exactly what the author intended. Thanks, man!