Ranger – “Defense” [Campaign 5, Mission 3]

The buffs state "Elven Capital," and there's also a tavern, so all +3 morale will be added to the defense.

There's also some cheap building you can put up, it's some kind of pond or something (I don't remember exactly), which gives +2 to defenders in the Elven city.
And regarding magic, I only have the basics of Light for Fedia right now, and no other schools were given. But he does have Elven luck.

And here's how it all started: after capturing a castle, I hired Ilfina because there were no other "native" heroes available. I gave her all the dragons and her free unicorn and dancers, and sent her to the mainland towards the western city, where Orson was visible from the mage's hut. Immediately, a second purple hero appeared in the corner, but he didn't go anywhere and just stood there (Deidra). A week later, I went there myself and cleared her out, and immediately after, Kaspar appeared there with a weak army, but I couldn't approach him - the battle wouldn't activate. I moved Faidaen to the city, but Kaspar doesn't move. His army is much weaker than Deidra's was. At this time, Ilfina cleared out the entire area around the second castle on the mainland, but now a strong turquoise necromancer has appeared in the area and is moving towards that city. I'm thinking of quickly moving Fedia there, because he can cover the entire area with Skilled Logistics, and return Ilfina to base. That's how things stand at the moment.