"In Honor of Our Fathers"; - "Wisdom of the Earth" [Campaign 3, Mission 4]

How did you take the Temple? There are ten Colossi, a bunch of Elementals, and other creatures there. They kill Kujin in one hit.

I took it on auto-battle; the losses were 1 Goblin :D. The enemy lost 3 Titans, 6 Colossi, and 200 Water Elementals.

In general, I completed this mission, spent some time with the mentor, and spent about 30 minutes reallocating skills to achieve the desired balance. In the end, my Kujin now looks like this:
Expert Wrath of Blood + Strength over Magic + Memory of Our Blood
Expert Attack + Battle Frenzy + Retribution
Expert Leadership + Recruit Bonus + Bloodlust
Expert Luck + Magic Resistance + Barbarian Luck + Soldier's Luck
Expert Shadow Suppression + Shadow Weakness
Basic Defense