As I mentioned earlier, dancers can defeat archers if they have their native territories, especially on grassy terrain (but it's also native to elves). Tactics, boots of swiftness, and an aura of speed also help. Wing can hit-and-run due to the initiative granted by the army. Take archers and druids, for example, and assign one archer to each remaining slot, then attack. Make one shot with each and, on the last turn, retreat. Repeat this several times until they are ready. Regarding enemy darkness: elves have a native light school in their guild, and light magic can be developed well, so dispelling and antimagic can be obtained. Dispelling can be learned from butterflies if needed.