If you aren't equipped with the correct weapon to defeat the boss, you won't defeat the boss (if you play The Legend of Zelda, you know this all too well). (edutopia.org)
Make sure to buy the correct weapon for each ranger or you will be going into each battle at a slight disadvantage. (thatvideogameblog.com)
If you ever suffer the misfortune of dying before your rookie companions, you'll notice that one, they will try to revive at the most inopportune times thus killing themselves in the process, and two, they hardly ever use the correct weapon. (gamingunion.net)