I think for me it would be the "pressure shot". The one you have to hit at a point in time but this not easy / or just made harder because of the pressure.
Some that come to mid from recent years:
- Hitting a 7 iron to an elevated green and finding the right tier in a tightly contested Match-Play in my club championship's semi-finals. I knew I needed to pull of this usually simple shot to close out the match. When it left the club, I knew from the feeling that I could have just bottled that shot!
- A couple of years back at Ryde-Parramatta, I was on my lowest ever gross score (2 under) teeing up on the 18th. I hooked it left and found myself on the next fairway. I chose the hero shot to keep the round going: a high faded 5i to get it up high enough and then cut it over the tree-line to the green. It was a gutsy, low percentage shot (I'm not much of a fader of the ball) but it came off great. I remember walking up to that elevated green still not knowing where my ball ended up. The feeling of elation when I saw it 3m away from the cup was something I still remember vividly. Sinking the putt was just a bonus, but that shot still remains one of the best of my golfing days.