All castles in Heroes 3.

I also don't think having 3 stealth units is an overkill! Everyone just uses their own tactics... I, for example, prefer to slow down the enemies and then systematically eliminate them! It's a win-win – victory and keeping my troops intact! ;) And, by the way, the strongest warrior is not always the fastest (take, for example, Barbarians or the Swamp faction). Accordingly, they won't lead anyone anywhere! ;)