They fight
They kill
They evolve (evolve [?x])
They fight, they kill
If you survive they evolve
Just as you must evolve
They fight
They kill
They evolve (evolve [?x])
They fight, they kill
If you survive they evolve
Evolve
They fight
They fight, they kill
If you survive they evolve
Just as you must evolve
They fight
They kill