Hallo! 
I'm here for some clarification of rules regarding Sectarus casting spells on a target with Nullify or Reverse Magic.

Does Sectarus's curse spells negate Nullify's and Reverse Magic's effects?
If yes, I can understand that Reverse Magic cannot redirect Sectarus's spell because Sectarus is not a valid target, but what about Nullify? And, does Reverse Magic still get to counter it?

I couldn't find the answer anywhere, so if this question has been answered before, I'm sorry.