I've been thinking about gaming the system a little by making a custom NPC that basically starts off with terrible stats at level 1 (for low INI and training cost) but has lots of nice bitflags (cMetal, cRapidMagic, etc) that'll allow it to grow into the perfect pet. I took the file "npc_template.txt" in /user/, copied it to "my_npc.npc" in the same directory and changed some of the fields, but I haven't encountered it at all in my game yet. How do I get my monster to show up?