You go to the ground and your arm will be dislocated by the art of my master who is crowned. And there is no counter that you can do. And here I will hold you and make it hard for you.
This elbow pin is an excellent technique to learn. It is simple, fast and adaptable to a wide range of scenarios. It can be used against an unarmoured opponent, or any weapon. If your opponent is leading with their left hand, it works just as well on the opposite side. In the context of this play, you are of course defending against a fendente stab from a dagger.
Pivot on the balls of your feet, push your right hip forward, and make a brushing block with your right hand. Reach out and give yourself lots of space so as to avoid running onto the dagger. Put your thumb under their wrist and your fingers over the top of their hand, pushing the dagger aside.
As they withdraw their hand, step across with your right foot to the outside of your opponents right foot. As you step, grab the hand tightly and pull your right elbow down to your ribs. Sweep your forearm across your body so that the arm is bent at 90 degrees with the hand at shoulder height. This will turn your opponent slightly, allowing you to catch their right elbow with your left hand.
Pivot 180 degrees on your right foot arcing your left foot around so that you are facing the opposite direction. The whole movement from your initial block to this point has a very light feel to it, as if you are skipping past your opponent.
From here you have two options. You can either step straight through with your left foot, or you can continue your circular momentum and arc your right foot behind you. Either way you will end up with your left foot in front.
Push your hips under your opponents hips and steal their centre. As you move your feet, throw your arms down into Posta Tutta Porta di Ferro. You should be in the position drawn in the picture.
Throughout the throw, keep your opponents elbow at your centre of gravity. Control your opponent via their right wrist. Keep the wrist bent inwards and pointing forward. This will create a painful spiralling force all the way down the arm. Depending on how much torque you put on the wrist, you will either lock the arm, apply pain, or start tearing the joints of the wrist, elbow and shoulder.
This technique is also made by the 5th master of dagger.