Eternal Sword Glitch
You can wield the Eternal Sword but still have another sword equipped on Lloyd.
1.Have Lloyd cast Falcons Crest (secret tech) by pressing and holding block (default X), attack (default A), and then tech (default B).
2.While casting a enemy must kill you the easiest way to do this is die and have Sheena cast Purgatory Seal on you so you have no HP then use Falcon's Crest.
3.When you are revived after dying during Falcon's Crest you should be wielding the Eternal Sword.