[Endoperez]

Unfortunately, that strategy doesn't work very well. Fire Drakes are grossly overpriced, for one. Death 1 would be enough to summon commanders for demons, in Enchantment (Revive King, and Create Revenant so that you don't have to use pretender to revive more kings).

Fire 9 is quite powerful even with Fire Darts. Look for spells with a + after area of effect and/or number of effects, and scaling damage isn't bad either. Falling Fires will be good, but even Fire Darts and Flare will devastate most enemies. The catch is that Fire 9 also gives your Flagellants two more damage sources (one for each attack of their flail); this damage is armor-piercing, and 8 points with minor variation, AND give them increased attack. Flagellants will die like flies, but will utterly devastate almost any creature, unit and/or pretender.

You seem to be taking production 3 - unfortunately, it isn't worth the points. You can do with even Sloth 1 (and other would probably urge you to take Sloth 3 and only use Flagellants), and increase Magic and/or Fortune to 3. Luck 3 is worth taking, if you go for luck, because it enables much better events.

Unfortunately, national units aren't too useful in the current game. Production isn't worth it, and luck isn't that great for planning, so most players prefer Order/Misfortune (as Order makes events more rare). I'd say it's worth using less optimized strategies, and I have enjoyed them for a long time.
If you want to rely heavily on your national units, you should probably go for few picks of Growth, for little more income. The population growth is also nice for a blood-hunting nation. If you can't afford Luck 3, and Production 2-3, Magic 1-3 with Moloch and Fire 9, feel free to take Fountain of Blood with two or three supporting paths. Death for the commanders, earth for Demon Knights, Nature for Crossbreeding (which is nice, benefits from luck, but isn't effective enough in competitive multiplayer according to the threads), maybe Water for Ice Devils (and Frost Fiends, but the latter probably aren't worth it in your warm lands - Ice Devils are top stuff though).