User blog comment:CaliforniaKingsnake/CK'S Thoughts On The Series 9 Roster/Lineup/@comment-29558956-20170413154941

Out of all the newcomers that didn't make it out of the Head-to-Heads, Cobra looked like it could've gone further had it not been grouped with Eruption. At least it survived to the end of that Group Battle and pressured Behemoth for a while, although I doubt whether its wheels would've lasted long against any of the heavy spinners (aside from Concussion, perhaps?).

Foxic is another one which I would've liked to have seen appear in a different episode. Given how fast and powerful it looked in its Group Battle, and how resilient the previous version was against Last Rites, I have to wonder how it would've fared against the spinners from Episode 4 in particular. Since that episode seemed grossly unbalanced and lacking in durable machines IMO, perhaps its speed, power and resilience would've worked in its favour and sprung a major surprise there.