
Originally Posted by
kilobug
In my view the unit is disbanded after combat, and you lose population only if the unit is killed during combat. And yes there is a small risk, but I don't see the "attack, kill the drafted units, retreat" being really usable. If you have enough forces to do that safely (without losing units in the battle), it means that without the drafted defenders, you would be able to take the city, and raze it if you wish, in just one turn. There are probably some combinations for which it's not true, but usually it would be.
So... to me this spell is a way to not have to build defense for your cities against weak units (raiding parties/scouts/...), but if facing a strong stack, it wouldn't change much. Unless it's combined with other global enchantments (like "life force", "crusade", "holy arms", ... in MoM) boosting units, then it gives a nice combo.