A Concept i had after reading IDW issue 55, was what if Starline didn't stop with Surge and Kit. After all Knuckles was still a possible future threat, i feel like he'd plan for that contingent. Most of the Sonic teams come in 3's ( Sonic, Tails and Knuckles, Amy, Cream and Big, Shadow, Rouge and Omega) so of course they needed a 3rd member, and this was my take on the idea. Here is Tremor the Wolverine! She uses Seismic Vibrations to tear apart matter, move earth and stone about her, and was made to match and exceed Knuckles in every way. Of course he didn't have Knuckles DNA so he had to improvise! Unfortunately she was super unstable mentally thus he gave up on her until he could find a viable way to control her. Thus she was lucked away in a capsule for later deployment. Perhaps Surge releases her to help battle sonic, or she's accidentally released during there battle!

This was my silly fan idea enjoy =D