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My main problem in Zephyr's Hope is that the Hero receives VERY FEW troops.
Moreover, I usually max out all light magic, luck, defense, and leadership.
The hero with the most troops is usually Faydaen (true luck + initiative), he usually goes first, especially since I protect the archers and druids (it's obvious why).
The strongest in magic is Railag (chains, enhanced earth explosion, witchcraft, and magical luck...).
Then Zephyr (the same as above, but with summon, divine retribution, holy word, and Thunderbolts with spirits + luck).
The weakest is Godric (only luck, Archangels, halberdiers, holy word, prayer, and regeneration).
Therefore, I also had to take the Guardian Angel for everyone, but damn, there aren't enough troops by the 3rd battle (only the most heavily armored units of Godric and Zephyr survive).