[RoboCat]

I was thinking. Hexers would be much less overpowered if their invocation spells were fixed up. For the most part they're not even counter-able. Once you get one good invocation off with the hexer class, any opponent who can't basically do you the same thing or heal their way through the onslaught is basically done-in.

Simply do this here, to fix the class. :
Make the class incompatible with High Speed Divine Words
Make Spirit pain and Earthbound Vengeance Rank C invocations.

OR

Make Spirit Pain a Rank B invocation because it can and does kill anything 100 percent of the time.
Then just like in the first suggestion make Earthbound Vengeance a Rank C invocation.