首先你复制的专长效果是错的，不是一种你的天生武器，而是一个你的天生武器。
Feral Combat Training (Combat)
You were taught a style of martial arts that relies on the natural weapons from your racial ability or class feature.
Prerequisites: Improved Unarmed Strike, Weapon Focus with selected natural weapon.
Benefit: Choose one of your natural weapons. While using the selected natural weapon, you can apply the effects of feats that have Improved Unarmed Strike as a prerequisite, as well as effects that augment an unarmed strike.
Special: If you are a monk, you can use the selected natural weapon with your flurry of blows class feature.
其次，认真看野训的专长说明。
它是允许你可以将“增强徒手打击能力的专长”应用到“所选天武”上，而不是让你可以用天武发动“注明徒手打击专用的专长”。你的天武依旧是天武，它不会变成徒手。因此无法发动那些“需要徒手”来发动的专长。比如虎爪，比如刚烈。都没法
正如楼上说的