User blog comment:Mich, Michele & Kuhla/Future Units Preview/@comment-26737409-20160128135644/@comment-96.4.165.157-20160128174721

You misunderstood. The again was refering to Avant's travels. When he weilded the sword, he regained his memories. That's he realized that he lost his son. He cried for three days and nights before he traveled again. His summon quotes support this. In his 6 star he says, "I don't know who I am. But the moment I held this sword, a small boy came to mind." This means that he didn't recognize the sword directly, but the memories within the sword allowed him to know who he is.