Kingdom of Water | Mission 4: A Dream Which Was Something More - main quests Heroes VI - Shades of Darkness Guide
Last update: 11 May 2016
Objective: face the reflection of Vein's past; defeat your own reflection; defeat the dragon Eel
Prize: 10000 XP, +3 magic defence
Right after you enter the area of the Kingdom of Water, you should receive an additional mission: "Divided - we lose", completing which will make the further challenges much easier. Before approaching it however, be sure to plunder the area. After collecting the few resources, you can attack Anastasia (M1, 3). Despite her having larger forces, you should be able to defeat her without any loses. Be sure to have your hero wears equipment which boosts might, so that your attacks quickly drain the enemies' life. Additionally using necromancy effectively should minimise your loses. If you lose the Air Elementals, I'd recommend repeating the fight.
Your next opponent will be Belketh (M1, 4). He's a bit more powerful than Anastasia, but still he shouldn't cause you trouble. Before beginning the fight with Vein's reflection you should boost your army. By collecting resources and eliminating neutral units you should come across a group of Water Elementals which will gladly join you. The next group of Elementals awaits for you at the Crashed Galleon (M2, 13) - just defeat a small group of enemies (you can get there by buying a ship and using the vortex portal). At this moment you should have the beginning group of Air Elementals and around 60 Water Elementals. Such forces are enough to defeat Vein's reflection (M1, 5). In return you will receive additional Air Elementals, thanks to which your forces will be able to deal with pretty much each neutral creatures group!
The next task is defeating the mad dragon Eel. AT this moment your army is too weak to challenge him. I'd recommend visiting the nearby Elemental Gate (M1, 6) (you will unlock the additional mission "Running Stream") and afterwards complete the additional mission "Divided - we lose", the description of which can be found in the further part of the guide.
This walkthrough assumes that you have completed all additional missions, have a big group of Air and Water Elementals and at least 3-4 groups of legendary creatures. With such forces, you can attack Dragon Eel (M1, 7) and the fight should be trivial. Just cast weakness on the enemy and mass heroism or heroic charge on your own units and Eel should be down after a couple attacks. In return you will receive the Water Elemental Essence which you can immediately place in the nearby elemental gate (M1, 6) ("Running Stream"). Also be sure to pick up the artefact left by the enemy.