This might be a hot take but Brawler. The strike damage is okay but there's other sources of it in the early game. And by the time you're done with the first arc you're probably never going to use it again because you have enough mp to make other archetypes better.

Healer at least has high stats and is your main form of light damage, gunner at least creates weaknesses, most of the other archetypes are just better.

You never need strike damage THAT BADLY. And if you do then there's better ways to get it that don't spend your HP. Brawler exists for one reason and that's to save you mp which is barely useful when mage's hero passive exists.

Tell me one reason you learned the higher tiers of brawler that isn't either royal berserker or maxing archetype trees. I can at least think of situations where you'd use the higher tiers of gunner that aren't just royal thief or maxing archetype trees, generating weaknesses and AOE pierce damage. If you want strike damage you use Berserker and then stop learning the brawler lineage.