Earn a rank of 5 Stars in the battle with Paco Amethyst & Paco Luvulite in Episode 6 - You'll encounter them in City of Academia AF500. Note that Paco Amethyst & Paco Luvulite need to be defeated somewhat simultaneously; if only one of them is left alive for too long, he will Raise his dead companion.
Set battles to Easy Difficulty for a better chance to earn 5 Stars. If you aren't confident in your performance, hit to Pause before the end of the battle and Retry it. You can also return later and attempt the boss battle a second (or third, or fourth) time via a Time Reversal. Remember that in order to do a Time Reversal, you need a Reversal Rock from the area first.
Yeah, fairly simple as well, just started the fight with rav,rav,com, having a golden chocobo as the com, and just bursting him close to death, then switching to com,med,rav when needed, since they are quite anoying when they do their double attack, but it wasn't a big deal in the end so(prolly over leveled that area :P )
@HaxxPaxx Chichu (secret monster on the eastern steppe [by yomi i believe, in the flowers] throw mog there for a chance] is better @ lv 36 mine finishes almost all battles in any pargadam my chichus stats are lv 36 atk 501 mag 259
Make sure the monster in your party isn't fire- or frost-based. One of them is healed by fire and the other is healed by frost. I prefer Circuitron, the bomb-based ravager that has lightning attacks.
Pretty simple strategy: they can resurrect each other after enough time... get the first one down to almost dead, kill the other, and quickly switch back and kill the first one before he can cast Raise.