Round table

In general, which specialist will have the advantage depends heavily on the specific battle: what troops, artifacts, and spells are involved. A defense specialist is particularly good, for example, when taking Dragon Utopias or Serpent Hives relatively early (where you get wyverns as a reward) – in situations where the opponent goes first, and the ability to withstand an attack is more important. And an attack specialist "rules" if they can (with or without speed) immediately eliminate the opponent's main units on the first turn, and the remaining units are no longer a threat. In my opinion, it's best to avoid "imbalances" in the ratio of attack and defense for the hero, choosing to improve the weaker skill when visiting Arenas, War Schools, or visiting Rampart Towers or Mercenary Camps.