wanting to find a martial art that focuses on using one hit instead of using multiple

if not wanting something that ups your strength quite a bit

any ideas or anything close

Boxing maybe? Look around and see what works for you. Not very many people care about the points Btw

Were you definitely wanting a martial art that involved strikes? Or were you looking for a martial art which was effective in taking out an opponent? Because boxing, still takes many strikes in order to win bouts, the same with karate.. Then after that you have judo which is no strikes but awesome fun and really interesting ie arm bars, throws, strangles, chokes etc MMA could also be an option.. Just throwing ideas around (:

They style of martial art that you train does not matter, only the school and instructor do. The best possible thing you can do is visit all of the schools in your area and pick the one with the best instructor and you'll be all set as long as you train right and enjoy it.

There's no martial art that teaches you just one strike to take down an opponent. That's because that's not possible - it's not common or guaranteed that one strike will finish off the opponent, which is why you throw as many strikes as you need to until the opponent cannot strike back.

Again, the best possible thing you can do is find a good school on your own that helps you meet your goals. The style does not matter, the school, the instructor, and you do.

If you have the technique correct and has a good amount of strength, then it's more likely to hit once instead of multiple times.

Shotokan karate. thanks for the 10 points.

wanting to find a martial art that focuses on using one hit instead of using multiple

if not wanting something that ups your strength quite a bit

any ideas or anything close