Runo Misaki's Haos Tigrerra became a Haos Blade Tigrerra after evolving. She took on this form when she and Runo went to the Doom Dimension, in an attempt to rescue Dan and Drago. When she and Runo were forced to battle a younger version of Dan and Lars Lion, she was almost defeated. Fortunately, Runo was able to confess her feelings, which allowed Tigrerra to evolve into Blade Tigrerra. When Dan was battling everyone to help Drago evolve, Tigrerra wanted to battle Drago but was afraid that with Shun and Storm Skyress before them, she may not get her chance, so she requested that they battle first, which everyone was okay with. She lost however. She has been in multiple battles since then, mostly in order to restore Vestroia. She stayed in this form up to the point where she must return to Vestroia.