Arcanopath monk wizard slayer help

[Void Bovine]

So I was wondering if there is any feasible way to make this class actually work well againt spellcasters. Just from the stand point that even with the class abilities the class would still loose againt a high lvl spellcaster just because said abilites would not be useable. The class's abilities do seem like they could work though if you could utilize them properly though any ideas would be awesome been wanting to make a wizard slayer with out casting for a long time.

[Karl Aegis]

Just target rambunctious teenagers apprenticing as wizards. Attack them while their teacher isn't around and you'll pretty much kill them 100% of the time. They don't move so fast and they don't have any useful gear on them. They may not even have any spells prepared for that day. Just kill them, they can't do anything about it.