"Ewan and The Land of Illusion" 
|Prior forms||Tuwarmon + Axemon|
|Voice actors||(Ja:) Masami Kikuchi (Xros Wars)|
(En:) Richard Epcar (Fusion)
Ruthless Tuwarmon is the DigiFuse of Tuwarmon and Axemon, with the primary focus being Tuwarmon. It features Tuwarmon's yellow, bipedal, ninja-based form combined with Axemon's legs. It wields Tuwarmon's Mantis Arms alongside Axemon's bow-like blade.
- DeadlyTuwarmon (デッドリーツワーモン)
Name used in the Japanese version of Digimon Fusion. No official romanization available.
- Ruthless Tuwarmon
Name used in the American English version of Digimon Fusion.