Bandai’s Mabushii Ryusoul Key and the World of Ryusoulger

DX Mabushii Ryusoul — Bandai's Light-Attribute Key from Kishiryu Sentai Ryusoulger

Knights, Dinosaurs, and the Super Sentai Legacy

Kishiryu Sentai Ryusoulger is the 43rd entry in Toei’s Super Sentai franchise — the long-running Japanese tokusatsu series that has broadcast continuously since 1975 and served as the source material for Power Rangers for decades. Ryusoulger aired from March 2019 to February 2020 across 48 episodes, and it stood out within the broader franchise for a noticeably darker, more serious tone. Its central concept fuses two enduring genre staples: the armored knight and the dinosaur. The heroes belong to a long-lived warrior race called Ryusoul knights, and that generational, mythological weight is woven into the show’s atmosphere from the start.

The American adaptation, Power Rangers Dino Fury, was produced by Hasbro and broadcast on Nickelodeon from 2021 to 2022 — roughly one to two years after the Japanese original finished airing. That overlap in fanbases is why both series names appear in the listing: the item draws interest from Super Sentai followers and Power Rangers collectors alike.

What the Mabushii Ryusoul Is and How It Works

The Ryusoul Key is the central transformation prop of the Ryusoulger toy line. Each key shifts between two forms: a fully articulated knight figure and a compact key shape designed to slot into the Ryusoul Changer morpher. The DX — Deluxe — designation marks this as the premium tier within the lineup, offering superior sculpting and articulation compared to the smaller standard releases. Bandai, the exclusive official manufacturer for Super Sentai toys, produced the DX Ryusoul Key series in parallel with the show throughout its run.

The word mabushii in Japanese describes something intensely, almost blindingly bright — the kind of light that forces you to look away. It signals a light-attribute soul within the Ryusoulger system, and the physical design reflects that name directly. The knight form is clad in silver-gray armor. It carries a large gold weapon resembling a sword or heavy club, and its dark navy shield displays a white lightning mark alongside a silver dinosaur or fossil symbol and a downward arrow. The lightning imagery maps visually onto the mabushii concept: flash, brilliance, a burst of light.

The series launched with the core five-color souls early in its run, then expanded with supplemental and enhancement types — including the Mabushii Ryusoul — as the show progressed toward its second half. These secondary souls function within the show’s battle system and were released as additions to the main collectible lineup.

Why Collectors Follow Both Franchises to This Item

Fans who follow both Super Sentai and Power Rangers are generally aware that Bandai’s Japanese DX toys and Hasbro’s Dino Fury counterparts are different products — different molds, different finishing, different included gimmicks. That distinction leads a significant portion of international collectors to specifically seek the Japanese original. The Ryusoul Key’s two-stage transformation has been noted by fan communities for the precision of its engineering, placing it within a respected lineage of transform-type gimmick toys that runs across multiple Sentai and Kamen Rider series.

Because the Mabushii Ryusoul sits among the supplemental souls rather than the five headline colors, it occupies a specific gap for anyone working toward a complete Ryusoul Key set. The DX line covered a wide range of soul types across the 2019–2020 window, and tracking down each variant remains an ongoing project for dedicated collectors. With Ryusoulger now more than five years off the air, standard retail availability in Japan has essentially closed — leaving international markets as the practical route for fans who missed the original release window.