Prowess means skill.
She was the greatest hunter ever.
In training, the student showed a great deal of prowess and skill.
The gladiator had shown to the Arena's crowd his prowess in soundly defeating his opponent .
You can basically fit it in anywhere you would normall use the word "skill." So you could say "His hunting prowess was legendary," or "She has amazing keyboarding prowess." It just means exceptional...
The lion was in prowess through the thick leaves stalking its prey.