Jonathan felt the shadow knives rip into his flesh, and clenched his teeth while trying not to shout. The hits were more cuts than stabs, and the metal robe have him some light protection; it was definitely way softer than solid emtal however, and he could therefore feel the shadows tearing part of his back with a sensation both like and unlike an actual dagger. He had forgot the cryptical horrors of the Shadow, and obviously underestimated their power.
Turning around to face the Shadow, he threw another punch on it -for real this tine- and then kicked it as far away as possible. As the Shadow was pushed back, Jonathan used the time he bought to reach for his necklase, and a the while starting to slowly harden the robe around his arms.