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You don't really need to take Phoenixes if you destroy all the Ghost Dragon squads; they are located in one mage tower. It's much easier to fight Kolyan with the Dwarf artifacts. And to prevent him from escaping, you need to find the "Chains of Inevitability" artifact.
I only took the Phoenixes because they were near the Prophet, and I also defeated all the dragons (thanks to Faydaen's special ability, "Shot before the battle," they were easily defeated). But these artifacts aren't that great, except maybe for the one that gives a bonus to spellcasting. The best artifact is the Unicorn Horn Bow, which is found in the dungeon. My army consisted only of archers and druids (dryads and swordsmen as cannon fodder), and I also took Ents with me. With this bow, all enemies are defeated quickly (especially if you have a general Haste spell to increase their turn frequency), but I couldn't find the handcuffs, neither in chests nor in the "vans" on the map. Oh well :p I have other concerns now - the mage :smile08: