|Shadow☆Star Zeroth Form: "Masmaune" Initiation Technique - Infinity|
Kage☆Boshi: Zero no Kata "Masamune" Denjuwaza Mugen
Shadow☆Star Zeroth Form: "Masamune" Initiation Technique - Infinity (黒星☆零ノ型「正宗」伝授技 無限, Kage☆Boshi: Zero no Kata "Masamune" Denjuwaza Mugen) is a powerful technique used during Masamune similar to that of Mifune's Jumbled Lineup and Black☆Star's Madness Takehold.
Using only during Madness Takehold, the user is capable of generating a number of hardened swords, composed of black shadow-like substance that makes up the power from the Uncanny Sword. These swords can be controlled and launched by the user, the technique itself being similar to that of the Infinite One-Sword Style's technique, Jumbled Lineup.