Persian scythed Chariot
Here is one recorded encounter where scythed chariots were on the winning side:
The soldiers had got into the habit of collecting their supplies carelessly and without taking precautions. There was one occasion when Pharnabazus, with 2 scythed chariots and about 400 cavalry, came on them when they were scattered all over the plain. When the Greeks saw him bearing down on them, they ran to join up with each other, about 700 altogether; but Pharnabazus did not waste time. Putting the chariots in front, and following behind them himself with the cavalry, he ordered a charge. The chariots dashing into the Greek ranks, broke up their close formation, and the cavalry soon cut down about a hundred men. The rest fled and took refuge with Agesilaus, who happened to be close at hand with the hoplites.