Secondary skills in Heroes 3.

Before a battle, you need to calculate who will go first and use speed artifacts.

Where can I get them? :confused: I don't have either a ring or a cloak, and I'm playing against Castle. Is that it? Should I end the game?
Everyone remembers taking Steadwick with a Dungeon hero, right? Letting that army from the garrison get close to you is suicide.
Besides, if the Archangels go first, they can slow down, blind, or berserk several of my units... Or the enemy hero can simply speed up their army, and all my ranged units will be tied up on the count of "one."
Of course, I'm not imposing my opinion on anyone. There are as many opinions as there are people. But I think I've at least explained the rationale for taking ballistics.

The same goes for magic. Stock up on magic in wells or with an artifact.

Yeah. We stocked up in a well. We have some decent headgear +4 or 5 to Knowledge. But compare the mana reserves of 120 and 240. I might be saying something silly, but I very often, after (or rather, during) a battle against a huge enemy army, would blind the last of their units and resurrect my entire army. :rolleyes: It's scary to think how much mana that takes.
But overall, Intelligence is in last place for me; I've repeatedly given it up when necessary.

I prioritize heroes who provide resources and money. (especially if in a Tower or Castle, they give the player +1 gem per day) and then I move them somewhere else, like to Sanctuary, and they will mine gems for the entire game.

It's a pity that something like Sanctuary isn't always an option. :( And besides, my reserves are gathered from mills and external dwellings (especially if they are dwellings for high-level monsters).
By the way, it's precisely in the Tower and Castle that there isn't a hero with +1 gem, just as there isn't one in the Dungeon with +1 sulfur or in Inferno with +1 mercury. ;) Luckily, there are plenty of other heroes in the tavern. Often, in the Tower, I would pick up a Saurug in the first week (if I'm not confusing the name... I mostly played the English version, and these goblin names are awesome). :rolleyes: