1. Hero with ranged attack defends.
2. Hero without ranged attack defends.
3. Battle without a garrison hero.
4. I personally adhered to the myth that the earlier the towers are built, the stronger they become each week, but after building in 3 castles on different weeks (1, 2, 3), I didn't see any difference.
5. Attacked and defended with heroes with ranged attack and ballistics - no changes.
I didn't test battles with a hero who has the "War Machine" skill.
And from the above, it follows that all towers on any week attack with the same strength! (regardless of whether there is a garrison hero): the main tower deals 30-45 damage, the side towers 15-30 HP.
But there is also a moment when the towers deal a lot of damage.
What do you think?