You need to find a bow.
Casting Lightning at a stage of the game where you've already built upgrades is not efficient; it's better for the hero to cast it with a channeled spell.
I think Forest Fury is preferable.
Dragons... I don't know, I still can't figure out the principle behind how the new ones work...
The white unicorn is worse... and it seems to me that the Sylvan faction has one of the best alternative upgrades.
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