Interesting. In that case, you should be able to sacrifice around 20/36 Inquisitors and get 1 troll (1575/2=787.5 is the result). It is not enough for a dragon, but you should be able to get one troll. The math checks out in this case.
There seems to be something wrong with the formula. It either doesn't factor the 3x15% bonuses (for the stacking 15% bonus for every 7 points of intellect), or my calculations are incorrect:
500*(1+0.05*25)*(1+0.01*(30+0))=500*2.25*1.3=1462. 5
I'm missing something that adds 10% to damage of attacking spells, then the damage is exactly 1575.
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