You can't apply a blessing, just as you can't apply a curse, in my opinion. And of course, you need to consider the damage spread and the ratio of attacker's attack to the victim's defense (for specific examples).
Therefore, luck * 1.5, and double damage * 2 = in total, the base damage is multiplied by 3 (strangely enough, I still didn't know exactly how much luck increases the damage, by the way, I don't think there's a word about it in the reference).
For example, the damage against hydras (they have a defense of 18, as well as the attack of knights, and therefore the attack/defense modifier is zero) will be in the range of 15-30 HP. Luck will add as much - 15-30 HP, and the ability will also add 15-30 HP... Total: 45-90 HP
Added 3 minutes ago
I noticed, of course, these small inaccuracies, but I'm not talking about them... :)
And as for the content, I'm always happy to hear news! So don't hesitate, you can even submit your ideas in parts, it won't be possible to enter everything at once anyway, we will do it gradually...
Added 4 minutes ago
(strangely enough, I still didn't know exactly how much luck increases the damage, by the way, I don't think there's a word about it in the reference).
"Luck increases the chances of a squad dealing double damage. This means that only the base damage will be added to the damage dealt by the unit - but no modifications are doubled. For example, if the damage dealt by an Archangel is 50 HP, with an Attack skill of your hero, each Arch in your army will deal 50 * 1.3 = 65 HP, and if Luck occurs, the damage will be 50 * 1.3 + 50 = 115 HP. They are modified similarly to morale - by artifacts, the "Luck" skill, visiting objects that increase luck, and the presence of creatures in the army that affect luck. The chance of a squad dealing double damage is calculated from the luck points in the same way as the probability of a re-roll from combat spirit."
