Fairy Tail Series 2 Episode 40: Ophiuchus, the Snake Charmer
Episode 40 of 102 of Fairy Tail Series 2, aired January 9, 2015, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Though sick from the Dark Magic he imbibed, Natsu makes a desperate bid to save Lucy and Yukino from Ophiuchus's artificial worlds. And the giant snake Celestial Spirit reveals the true nature of her plan as well as the identity of her master