Breaks sword on opponent

 And therewith he came fiercely upon Arthur, and Sir Arthur was wroth for the blood that he had lost, and smote Accolon on high upon the helm, so mightily, that he made him nigh to fall to the earth; and therewith Arthur's sword brast at the cross, and fell in the grass among the blood, and the pommel and the sure handles he held in his hands.

Le Mort D'Arthur