Tsuna and Natsu

Ring of the Sky Version X:A newly formed ring created by combining the Sky Vongola Ring and Vongola Box Ring (Natsu).
Leone di Cieli Version Vongola : Tsuna's Vongola Box Weapon, which takes the form of a young lion with a mane made of Sky Flames.
Cambio Forma Modo Difesa : Through Cambio Forma, Natsu changes into a long, black Cloak. The Cloak is attached to a metal plate on the X-Gloves. The Cloak's Ability is to nullify attacks using the Sky's Harmony characterization.
Cambio Forma Modo Attaco: Natsu combines with the X-Gloves and turns into a Gauntlet. While using this, Tsuna can concentrate all his Flames into a single attack without charging.