- A reference guide and manual in Russian for Heroes 3.

The damage from ranged towers is affected by 3 factors: the Air Shield spell, petrification of the target, and the presence of a secondary skill or armor specialization on the attacking hero. All these factors should reduce the damage, but they increase it – this is a bug.
There are no questions about the first factor (it is also mentioned in the physics engine), and the second factor is not frequent enough for basilisks or medusas to emerge from the castle and petrify the enemy, but the third factor is more problematic – a hero with expert armor does not receive a 15% damage reduction from the towers, but rather a 2x damage increase. The only question is that this bug does not always occur (although I have seen it mentioned in descriptions). When checking on one PC, it exists, but on another, there is no sign of it. The pattern is unclear. It does not depend on other factors, but when Air Shield and the armor skill are applied simultaneously, only one of them works. That is, it seems that any of these factors can trigger the doubled damage from the towers.
So, the question is – in what situations does the negative effect of the armor skill manifest itself, and how can this be dealt with?