Reasonably Weaker Lords & Heroes – Deadly Attack Dynamics
Halves all Lords & Heroes Damage, reduces range and removes all splash attacks with Deadly Attack Dynamics non-damage changes (excluding big monsterous lords/heroes)
Compatible version for Deadly Attack Dynamics (don’t use the vanilla version).
For more of a challenge and meaning check Remove Immortality and More Mortal Legendary Lords.
Another option is RPG Skill which overhauls heroes skills, or Less Skills which reduces the overall skill points acquirable.
Recommended to play with my collection which addresses other battle aspects of the game.
Any comment/insight/request/bug is HIGHLY appreciated and welcome.