[DISCUSSION]

On the topic. The map is interesting. You need to deliver the "Vial of Vitality (Vessel of Lifeblood)" to the main city. I have "Levitation" and "Astral Gate," and I've explored everything. I found a portal; first, I defeat the first squad of Archangels, and I receive the Vial of Vitality, but then a second squad appears with 4 groups of Fire Elementals and three groups of Devils. They can only be defeated by having the Sphere of Vulnerability or by gathering a huge army (which is impossible). You can't open the blue gates; otherwise, a green enemy appears and destroys the city. There are 3 remaining tasks: bring the trees - #1, "Titan's Battle Sword"; - #2, "Thunder Helm," but I can't find them; and the house for - #3, "Angel Wings" simply gives one angel; such a powerful artifact for just one angel – it's nonsense, or there's a riddle here. In general, I'm stuck, or the map is buggy. By completing the tree and house tasks in order, they sequentially take one artifact and give another in return. The last one gave "Sword of Justice," which is useless.