Baron Opal II
Legend
Makes sense, and significantly tones down the power of the rings in general.
It is pretty mediocre. My monk has arcane initiate and the hex spell. Due to the utility of the bonus action to a monk, it is hard to get the time to use the spell. There are really only two situations in which he uses it:A monk with a ring full of hunters mark could be fun. Not broken, but fun.