Fairy Tail Series 2 Episode 87: Tartaros Chapter: Memento Mori
Episode 87 of 102 of Fairy Tail Series 2, aired December 4, 2015, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Rogue and Sting have one last chance to take out their former, now demonically resurrected, master. Meanwhile, it's hard enough for the tag team of Natsu and Gray to make any headway against Mard Geer's ultimate form, but then the Underworld King unleashes his ultimate curse, Memento Mori!