First off, you don't need 165dpa. You need a cushion but not that much. 100-110 dpa is a decent faery def to have.
If they feed to break 1 faery just to help him get higher wpa & tpa then that kd should be shot.
It says unbreakable. You aren't an unbreakable if you can be broken. 100 dpa on 2660a is 266k def. That is breakable for a 90 opa attacker via Conquest.
Personally, I think 165 dpa Faeries are ****ing retarded, but those were the standards given - unbreakable.