Could you provide a link to the video where everyone fights Finneas in "Wayfarer"? I watched Belkin's video after my victory.
Here's Richard Chen's battle: https://www.youtube.com/watch?v=2lk_VfZ89xA&t=4s. His approach is more original and interesting than Belkin's, and I prefer it. The army composition and the randomness of the fear effect can be adjusted, but the principle is the same: gather all the enemy forces in one place and then unleash a mass berserk attack until only the Azure Dragons remain. I had a slightly different army composition and a different setup, as well as different fear randomness, but I used the same principle. The key is to set up a weak trap so that the Titans run down to attack someone else, creating a general melee. :)
I HIGHLY RECOMMEND watching ALL the other tricks that Richard Chen suggested, which this player presented 4 years ago (!). There are several interesting battles in Wayfarer, purely in a Chinese style (shooting down all enemy projectiles, draining enemy mana, and summoning elementals when attacking the castle).
In the battle with Sandro, the main thing is not its difficulty. This battle serves to introduce Kilgore into the game, as only he can win it due to the "+2 speed" specialization. This is the main "trick" of the battle.
P.S. From Richard Chen's battle, it's clear that he completed this battle (i.e., finished the Wayfarer map) on day 6, 1, 3, which is 4 days earlier than me. You can make up those days at the beginning of the map, but I didn't bother, so I fell behind him by a couple of days