It was sometime ago, but I still remember it. The world was set in the Napoleonic Wars period, but it was a homebrewed setting. My character was essentially a cuirassier, although my character was known as a knight since many knight orders lived on through the ages in this setting, so most of them took the place of such units.

So, what happened was that my character went off to war, and the group she was with was thrown in a last stand-esque situation. Surrender was hardly an option, so we holed up in a house. The company chose a NPC skilled in melee combat to back my character up as we held off the coming forces in the front while they did potshots from inside.

A number of enemies kept trying to kill us in waves. My companion was doing enough damage to keep himself alive, but my blade was deadly. Rolls were doing so well that I was one-shotting people by striking the neck, head or shoulder area (system had an injury table, where you hit depends on a roll), that I used the Best Successes to my advantage. The system had an maneuver where you spend two dice to activate it, but if you had Best Successes on your roll, you could use them to make another attack. We were facing four people each wave, and I would cut through three or even all four of them.

Eventually, I think my friend who was DMing for me had enough of my luck and set a large group of foes that surrounded us. They intended to shoot us down in a firing squad, but I wasn't about to die right there. Passed a roll to duck under the gunfire, narrowly escaping death as we hurried ourselves back into the house.

There was also many times I used a lance in a cavalry charge (overpowered with a lot of dice) and tossed a broken lance into someone's face and managed to get it stuck inside, but nothing was as thrilling the above event.