Thread:The S/@comment-995426-20160813194043/@comment-995426-20160813203417

To more directly answer your question:
 * Why would a turtle qualify as their own ally?

The answer is: As a group, they are among "the allies," which also include the other allies they can rely upon, including Splinter, April, Casey and so forth.
 * Leonardo is an ally of Donatello, Raphael and Michelangelo.
 * Donatello is an ally of Leonardo, Raphael and Michelangelo.
 * Raphael is an ally of Leonardo, Donatello and Michelangelo.
 * Michelangelo is an ally of Leonardo, Donatello and Raphael.