HALL OF FAME! (for the third stage of the WCG)

Fireball

Scouting.

About the map.
At first glance, it makes a pleasant impression — two victory conditions, many chests with money and resources, strong neutral troops, portals, artifacts, a surprise... In general, thanks to Sir VDV_forever, the map is a solid 10 out of 10. Also, there are no spells like "fly" or "dimension door" on the map, so it's impossible to reach either the sphere or the computer players by going "straight."

About troops and magic.
Among the useful spells in the guild (levels 1-3 provide "haste", "slow", "precision" and "force field"). An assessment of the possible strength of one's own army gives: first week — 3+6+7+7+7+20=50 snipers, 1-9 angels from the conservatory, various same; second — 50 +7+7+8(another +7 if building a castle) = 72(79) snipers, angels as in the first week, there can be very many small units if diplomacy is leveled. A combat test showed that a hero (Aiden was tested) having 70 snipers, "expert marksman" skill, attack 15 (total with artifacts), casting force field and precision kills 260 gold dragons in ~65 turns, spending 360 mana at magic power 15. From this came the idea to take out the dragons by the second week, ideally within 8 days.
About heroes.
Upon careful consideration, it turns out that only logistics specialists can reach the sphere by the eighth day (even taking the surprise on the first day). Gunnar is already on the map, Kyr is dismissed due to poor development, leaving Dessa. Testing shows that on this map, Dessa can be leveled up to obtain wisdom, earth magic (needed immediately for taking conservatories) and air (for the finale), archery, second tier of luck, and 1st tier pathfinder (to avoid losing too much time in the swamp). Excellent. To help in the final battle, it is convenient to use the "Slayer" spell, which Coroneus has, plus he has the "scholar" ability, so he can also bring spells to Dessa who has run far ahead.
About resources.

In the castle area, there is only one pile of gems, but there is a mine. 10 are needed for guilds levels 2-3, and 10 for archangels. This means they must be traded or bought. There is also the problem of money — about 30000 gold lies in the vicinity of the castle, while snipers alone require 20000.... The problem disappears if you take Pandora's box with 30000 gold and 5 gems. However, to take 350 serpents without losses, an Archangel is already needed (the angel's speed is not enough for the first turn).
Overall, the walkthrough turned out as follows:

Day111:

Jelu, in the company of one sniper, runs up, capturing the outermost pile of wood in passing, and takes two chests with gold 2000+1500, then aims left to take out the gogs. In the castle, we build a tavern and buy Jem there. She leaves all her forces except for the centaur in the castle and heads down to the area of three chests, where she takes two of them (2000+1000). Then it's Pir's turn to be bought, and she, leaving the imp in the castle and taking the centaur, runs right, takes two chests (1500+1000), and freezes in indecision. We add the fast Moner to the ranks of our valiant heroes, and he runs left for a chest, picking up a pile of ore on the way for the upcoming construction of the Mages' Guild. The chest brings its 2000, and Moner aims for the next chest. And finally, to the triumphant fanfare of the orchestra and loud applause, the glorious Dessa appears. Leaving the castle in the company of a goblin and a sniper, standing exactly on the square above the watchtower, Dessa signals Pir, who gives her her ballista. Now Dessa is ready to attack "Surprise." In the battle with 500 elementals, the sniper runs into the upper right corner of the battlefield in two turns, and then runs up and down along the right border, fleeing from the stack of elementals. The goblin defends, the ballista fires. After a long time (special thanks to Sir vbn for BallistaUbivalk), the battle finally ends in a clean victory for Dessa. The experience gained in battle is used as follows: -> 2 wisdom -> 3 wisdom -> 1 archery -> 2 archery -> 1 earth -> 2 earth -> 1 luck -> 2 logistics -> 3 earth -> 1 wisdom -> 2 wisdom -> 3 wisdom -> 2 luck. Tier 3 logistics is obtained for free. Dessa aims for the castle.

Day112:

Dessa gives 20 snipers to Jelu, who is standing in the adjacent square, after which he attacks the gogs and the orcs, wiping them out without losses. Jem collects the third chest of 1000 gold and runs for the water mill (+500) and a pile of gold nearby (+700). Pir, taking a pile of wood at the sawmill and ignoring the sawmill itself, takes the gemstone mine and aims to collect resources up top. Moner takes the chest on the left for +1000 and runs toward the refugee camp, capturing a pile of ore at the mine on the way. A Level 1 Guild is erected in the castle. Dessa runs into the castle, studies magic (the main thing — slow!), buys all the wood elves there, takes them (13 units) and the snipers, runs right, takes Knowledge+1 and further right Attack+1.

Day113:

Jelu runs to a rendezvous with Dessa. She takes the snipers from him and gives him the elves (there is not enough of the existing 1300 gold for an immediate upgrade). Dessa, without distracting herself by increasing her magic power (there is simply no time for this), takes the campfire +500 and 5 wood, breaks through the zombies and evil eyes. Due to a shortage of money, Dessa takes all four chests (3x1500 and 1000) and breaks through the monks. Jelu makes 13 snipers from the elves. Moner, ignoring the mine, buys high elves at the camp and aims down-left at the golems. Pir collects resources and aims for the elf growth. Jem picks up a pile of crystals and a campfire (+500 and 5 ore), staying in that area.

Day114:

Jelu runs to Dessa. She takes 12 snipers from him, and, possessing an army of 35 snipers, opens the first "can." The snipers move first, Dessa casts mass slow.... Victory without losses. Having received two angels, Dessa opens the second "can." Battle formation: 10 snipers - 2 angels - 11 snipers - 14 snipers. Battle: angels hit royal griffins, killing 8 out of 10; griffins hit the stack of 14 snipers, killing no one; sniper stacks 10 and 11 shoot at the right-center griffins and kill them; 14 snipers take down 9 out of 10 griffins in the upper left pile; the griffin stack cannot cause even a single unit of damage, and two stacks of 10 do not reach on the first try and are quickly exterminated.... Victory again. Dessa reaches another (15th) level and prefers to learn pathfinding. Having received an angel, Dessa with a formation of 35 snipers - 3 angels storms the last "can." Battle tactics: slow, strike by angels at royal griffins, finish them off with snipers; then similarly with the upper left stack of griffins; then run with snipers away from the griffins and shoot them down, hit with angels calculating so that they all stay alive.... Victory. Then Dessa runs up to Jelu and gives him all the snipers. Breaking through silver pegasi with a formation of 3 angels - 3 angels without losses (but with effort), Dessa takes the snipers back and takes the Military Academy (+1 attack). Pir takes centaurs from the stable and stands next to the manor. Moner runs toward the golems guarding the resources, but doesn't reach them. Jem takes a fairy and 7 great elves from him and breaks through the golems without losses (the elves run out of shots and the rest of the golems are finished off in hand-to-hand combat with the help of the first aid tent). Jem picks up sulfur and gems. In the castle, we build a market and buy Coroneus, who heads toward the crowd of royal griffins.

Day115:

Jelu collects chests at the witch's hut, then aims for the two upper chests. Dessa takes the shortest path (past the serpents) to the crowd of royal griffins. She doesn't reach them. Moner and Coroneus stand right next to the griffins. Jem takes two piles of crystals and stands right next to the pack of stone golems. Pir enters the manor, but does not buy elves. In the castle, we erect a Level 2 Guild.

Day116:

Jelu, skipping two chests above, runs toward the castle. Dessa breaks through the griffins with a formation of 17 snipers - 1 angel - 2 angels - 2 angels - 1 angel - 18 snipers. The 5 available units of mana are enough for mass slow. Angels cover the snipers and finish off the griffins at the end. Victory without losses. Coroneus takes all troops from Dessa, preserving their formation, and gives a centaur. Dessa stands two squares below the pile of gold. Coroneus takes the stable, breaks through basilisks (slow twice on the upper pile) without losses, gains two levels, takes 2nd level scholar and wisdom. Then he breaks through lords of the abyss (they are on magical ground, so remaining mana goes to mass slow) again without losses and, having gained a level, studies the long-awaited 3rd level scholar. Dessa visits the stable, takes forces from Coroneus in exchange for the centaur and attacks the pack of golems, wiping them out without losses. Jem takes an angel from Dessa and at the fort on the hill turns him into an archangel, gives him back to Dessa, takes the remaining five angels from her, and stands in the fort. Coroneus heads toward the wondrous armor and takes a chest +1500. Dessa stands on the border of the magic plains, Moner takes the stable and takes snipers from her (to speed up Dessa), Dessa runs down, Moner too. Then, with a heavy heart, we exchange 30 mercury for 3 gems, another one is obtained by exchanging crystals. We buy Grindan (or any other elementalist, it doesn't matter), build a Level 3 guild, and run with Grindan toward Dessa.

Day117:

Jelu reaches the straight road down from the castle. Dessa runs down to the entrance portal, stopping briefly near Moner so that he can give her the snipers. Leaving the portal, Dessa takes the well and opens Pandora's box. Battle: mass slow on serpents, fly up and down in the right part of the field with the archangel, shoot them down with snipers, casting slow as needed. After a convincing victory, Dessa breaks through dendroids, takes the dragon crown and heads toward black dragons (the two levels gained in the process are put into air magic). We buy two gems for money (!) (they become 8). Jem upgrades four out of five angels (one angel will be needed in the final battle for the artifact), runs left and takes the stable, then goes for a pile of gold and slightly up. Moner jumps into the portal and aims for the war machine workshop. Coroneus takes the wondrous armor and runs to the portal. Grindan runs toward Coroneus. In the castle, we buy Rizza (+1 mercury!) and run with her up and left to the point that Pir will reach from the elf hatchery on the next turn. Pir buys 7 elves.

Day121:

Pir buys growth in the elf hatchery, runs to Rizza and gives them to her. We dismiss Pir. In the castle, we buy Caitlin and all the elves. Rizza gives her elves to Caitlin, Caitlin gives elves, archers and a couple of pikemen to Jelu. Jelu makes snipers and runs to meet Jem. Jem takes snipers from Jelu, gives them and an angel with archangels to Grindan, and then takes the last chest in the vicinity. Grindan gives forces to Coroneus, who also learns all of Grindan's spells. Dessa runs toward the dragons, stopping at the portal on the way and receiving troops and artifacts from Coroneus, learning all spells. Then comes the battle with dragons. It can be played with two formations: "snipers - angel - arch - arch - arch - 2 archs" and "snipers - 3 archs - 2 archs - angel", both lead to victory with the loss of 2 archangels. With the first formation — cast stone skin, cover snipers and angel with archangels, then heal the angel and shoot down BD, then heal whoever is more likely to perish. With the second — haste on the angel, covering, then stone skin and healing again. Victory, level put into air. Dessa runs to the well. Moner buys an ammunition cart and gives it to Dessa, then takes a pile of gold. Dessa, jumping through portals, collects sandals and sword, puts on sandals instead of boots. Dessa portals to the location with the Sphere, takes a pile of gold and all chests. With all the money, we buy mercury and dismiss the heroes. In total, before the final battle, Dessa is level 19, stats 17-11-14-16, 280 mana, 72 snipers, 1 angel, 3 archangels, spells "force field", "haste(exp.)", "Precision(exp.)", "Slayer".

Final Battle:
Formation: 72 snipers - angel - arch - arch - arch.
1. First turn — force field around snipers, angel and cart; 2 stacks of archangels cover the angel, who then positions himself to be covered by the field. Then the field is set every odd turn, the angel defends, snipers shoot.
2. Haste. Repeat on turns 16, 30.
4. Slayer. Repeat on turns 18, 32.
6. Precision. Repeat on turns 20, 34.
The duration of the battle depends on the frequency of luck and morale triggers. For me it was as follows:
luck worked on turns 12, 29, 30, 32, 38, and morale didn't work at all. In the end, victory on turn 43 of the battle.

Total: 8 days, Dessa level 23 with stats 18-12-15-17 (sum 62) and 63 mercury.