Heroes 5.5 WarGame Edition - Tactical Edition.

1) The NHF mod has a lot of icons.
2) Tolgar or Hangwul can be easily replaced – you can rotate them.
3) Ultimately, if you really like Helmar's visual, you can just change the name to something new, keeping the visual.

1) Yes, that's true, but when it comes to "fan-made" icons or icons from other games, there are doubts about whether they fit the style (though, I need to review them again).
2) Tolgar and Hangwul are not suitable for the role of a berserker; they are relatively young warriors, not grizzled old men.
3) I've thought about it, but I'm not sure yet.