Axel's PoV:
I fend off the attacks of multiple high-level monsters by just using my mana barrier.
The most annoying high-level monster among the high-level monster group was the forest spirit.
I was hoping for the forest spirit to fall off from the pit and die but since they were just humanoids made out of mana, they wouldn't die unless I used mana-based attacks.
I had to manually eliminate all forest spirits and I had also needed to personally destroy the golems since even if the golems fell on the trap, they wouldn't die since they were made out of rocks and some were made out of wood.
The only trap that worked against the golems was the piranha-filled moat.
Even though the piranhas were able to destroy the golems, I often heard the piranhas whining to me via telepathy about how painful their teeth were due to biting through rocks.