In Depths of Madness in the area where you find shiro and the lich there is a boss called topo the protector. There seems to be unlimited graven monoliths but I haven't been able to fully test it. Could be useful for farming points
.*P.S. the boss also resurrected himself*

And the ones i battle are dervish 50% of the time... dont know why they just like to die melee style.