Talk:Star Dragoner, Jackknife/@comment-11200850-20160903080119/@comment-24971427-20160903090405

Perpetuity Envoy, Elixir is pretty good. Aside from the low defense, it does boost all your cards on the field.

If you still want Jackknifes, Neo Aggressor can do the job. Just instead of getting Cavalier, you get Divistagator.

Red Shift, Spectrums takes a little while to be on the same level as Jack, but he's pretty good.

All versions of Aster is great. Just dependant on Dragonarms.

Star Dragoner, T Alpha. Most basic, but still has some worth.

That's all I found, good luck.