Complex sentence: The Samurai was stunned that the Clowns still "existed", fought the both Murdock and Elektra but when he realized he was outnumbered, the Samurai fled.
Split into simpler sentences: The Samurai was stunned that the Clowns still "existed", and fought both Murdock and Elektra. But when he realized he was outnumbered, the Samurai fled.