Complex sentence: During Darkseid's attack on the Source, Kanto encountered Artemis of Bana-Mighdall, the one-time Wonder Woman, and defeated her in battle; during this fight it was inferred that Kanto was not only her former teacher but her former lover.
Split into simpler sentences: During Darkseid's attack on the Source, Kanto encountered Artemis of Bana-Mighdall, the one-time Wonder Woman, and defeated her in battle. During this fight it was inferred that Kanto was not only her former teacher but her former lover.