Splitting into single units is justified if:
a) you simply have empty stacks (at the beginning of the game, they are naturally empty)
b) if you want to level up a second hero and have a non-zero army for him right away.
This is my approach, but I would be glad if experienced online players share their opinions.
- regarding tactics: is there any point in sending a strong unit directly into the enemy ranks to deal damage (but it will be killed immediately) - for example, djinns?
how can mages attack dragons without taking losses =[/QUOTE]
They have powerful mini-units. The same ballista will be effective, obsidian golems, healing with a wall of fire, etc.I've heard a lot about hit-and-run tactics, and I've seen it myself. But I can't understand how to do it (for example, with Warlocks) - do I need to level up Mentorship and teach other heroes Armageddon?
is it worth attacking strong neutrals with losses (but gaining experience from them) - or is it better to only attack those you can 100% easily kill and move towards the opponent?

Барон "Vampires"
Отдай свои прошлые сны,
В сомненьях себя обрети,
В бешеном танце душа кружится!
Не думай, что будет потом,
Здесь и сейчас мы живем,
Стань хоть на миг сам собой, слышишь!