Diamond Punch (ダイヤモンドパンチ, Daiyamondo Panchi) is a catch hissatsu technique.
This technique was first used during the match between Inazuma Japan and Muteki no Giant. Endou suddenly faced a new shot from Clario, Diamond Edge, and because of the sudden angle the technique used, Endou had to use something different. Thus he came up with this technique, Diamond Punch to jump to the shot and powerfully punch it out of bounds.
Endou used the technique again in the quarter-final match against Brazil, he successfully stopped Arthur's Carnival Shake and also in the semi-final match against Guardians of Queen, he successfully stopped Matteo Domenico's Bousou Chariot.