Streak

In the wake of the legend of Silo, there were some attempts to replicate her success before Fyre could convince everyone how imprudent and unnecessary that was. Streak also achieved level 4 alone before joining his first team, but very little is mentioned of him for it.

It's not common knowledge that Silo ever had teammates besides Splinter and Shatter; her stint with Streak and Sira (who also began as a solo fighter) was very brief. The three came together in theory to form a super-team of individually self-sufficient dragons. In reality, their battles flowed with the clumsiness of three dragons unpracticed in teamwork with anyone, including each other. Silo, still by far the most powerful, always led the charge. When it was time for Streak to choose his secondary attack-type battle stone, he opted for Concentrate, with the intention of using it to keep up with Silo, or boost her intelligence as a last pre-knockout act. Sira chose similarly; she got Haste. This was how, when Silo left to rejoin Team Splinter, her disbanded teammates found themselves a dragon short, stuck in a rut of playing supporting roles (the irony would have been funny if it hadn't also been devastating), and no elemental attacks. This made them unpopular selections for other teams, and unable to capitalize on elemental advantages, their prospects of continuing onto higher level battlefields were unfavorable.

They became trainers of exaltation-bound dragons, but also didn't fare particularly well in that role. Still being of relatively low levels themselves, they were unable to take trainees to high-level fields where experience points accumulated quickly. They were quickly overtaken by speedier training pairs like Blessing and Magia.