Fighting preys on that normal typing for sure. I call it a "super hater" relationship. Where no matter what the other typing the Mon has because it's a normal also it takes SE.
Pidgey, for example. Use a fight move on a pidgey. SE. Cause of the normal typing.
For defense tech I have legit thoughts on a confusion/ focus blast alakazam. It's a trap. Throw him on a fresh conquest or wherever hell be fought first. The attacker will see that psychic first up and I guarantee their gonna pick their T-taur at the top of their lists.