"Dai Gattai Toradragonjin" (Japanese 虎龍攻神, read as a pun on tiger 虎 and dragon 龍) is the second major combining robot of the series Avataro Sentai Donbrothers (暴太郎戦隊ドンブラザーズ, 2022–2023). It belongs to the additional warrior tied to the character Jiro (marketed by Bandai as "Don Dragoku") and appears alongside the main mecha Don Onitaijin as a separate battle unit. As is typical for Donbrothers, the robots are summoned via so-called Avataro Gears. Because the series never received a Power Rangers adaptation, this mecha was never released as a Power Rangers toy — every release is Japan-exclusive.

Toradragonjin is formed by combining two individual robots: Don RoboGoku (ドンロボゴクウ), a golden dragon with a Journey to the West / Son Goku motif, and Don RoboBolt (ドンロボボルト), a purple tiger. In the merge, RoboGoku wraps around RoboBolt like a suit of power armor, creating the combined tiger-dragon figure. Unlike Don Onitaijin, Toradragonjin can further super-combine with it into an even larger robot, Toradora Onitaijin (トラドラオニタイジン); together with OmiKoshi Phoenix a further stage yields the top form, Toradora Onitaijin Kiwami.

The DX toy "DX 大合体 虎龍攻神" was released by Bandai (Japan) in August 2022 at an MSRP of 9,680 yen as a standard retail item. The predominantly plastic (ABS/PVC), purely mechanical (non-electronic) combination robot stands roughly 339 mm tall when assembled, matching the scale of DX Don Onitaijin. Articulation is limited mainly to the shoulders and elbows; the set includes both component robots, which can be displayed on their own and connected to the separately sold DX Don Onitaijin. No separate color, gold or TV-kun special variant is known. The collector appeal lies chiefly in its role as the series' second mecha and in its super-combination compatibility. No Power Rangers counterpart exists.