The Thorn Regalia originally belong to Gazelle until she committed suicide and her Regalia's core was taken by the Takeuchi Brothers. It was eventually given to Rika, but it disappeared after the fall of the original Sleeping Forest. After becoming a Brain Charger, Rika is given the Thorn Regalia version 10.7 which posses Gazelle's Regelia Core. The name of the the Thorn Regalia is Virgin Blade.
TricksThorns - The signature trick of the Thornier Road. Thorns take the shape of long, thin rods of wind with pointed tips. Although Ringo doesn't consider them very powerful, she is capable of firing many of them very quickly, making them quite formidable.
Infinite Chain: Turquoise Thornier - Ringo's Infinity Atmosphere. To activate it, Ringo has to deactivate her Regalia briefly and let it charge. Once the charge is complete, shebegins to rotate rapidly, firing Thorns indiscriminately and damaging herself as well as her opponent. While the trick's effects are not immediately clear, it was shown to be powerful enough to blow away the Wind Regalia 's Infinity Atmosphere and inflict serious damage on the surroundings.
Thorn Arrow: Rika is able to release a sonicboom arrow by pullig the drawstring of her regalia bow. The arrow is able to easily pierce a person.RikaxSora: GOD CRUSHER "Gungnir": a combination of both the Thorn and Sky Regalia techniques. With the piercing power of a sonicboom, Thorn Arrow, while adding up the accelerative drive of the wind current, it creates an extensive pulse of sharp wind that deals a massive damage.