Ketsuen became imbued with the chi of Hida himself, and thus grants the wearer a supernatural endurance. It grants the wearer a +10 TN to be Hit, and allows them to ignore a number of wound levels equal to their Hida School Rank + 1. Magical energies slide off the armor like water, and any shugenja attempting to cast a spell upon the wearer must raise the TN of the spell by the wearers Earth x 5. Even if the spell succeeds and does damage the armor will remain intact, as it cannot be harmed by any magical means.