Grouchy

Orcs aren't undefeatable. But they are brought up from the age of like 3 to be expert fighters. They aren't to be casually fucked with.

Then again, every human and his mother was brought up at the age of 5 to be a master swordsman, and every elf was brought up to be a master assassin mage. But realize this : Their parents were all killed by orcs!

You forgot the people who are master mages in a specific magic, but can still kick ass with sword fighting.