The petitioner on this one is Gurdy from Mt Bur-Omisace. Some time ago a legendary Trickser has saved his precious chocobos from choco-thieves and he decided to post him as a hunt mark (gratitude...).
Theoretically you have competed about this quest with Mondid, but after he had reached this place (before you did) he had stated that he can't do this alone so he joins you.
About 62 000 HP
Resistant to Libra,
He's vulnerable to one element and absorbs the other.
He can be found in the area south from Bur-Omisace. When you enter the area you'll be greeted by Mondid and if he says that Trickster has appeared - everything is alright, but if he says that the enemy is nowhere to be seen leave the area and re-enter.
Mondid, as in every other hunt someone else is helping you, isn't especially useful for you.
The fight with Trickster is very dynamic. You rarely find yourself standing and facing one another while exchanging blows. Mostly the enemy runs around at high speed, you lose him out of sight and in next second he attacks you all of a sudden with Wild Charge (very strong attack against one of your characters) or Choco-comet (a another strong attack which deals damage to everyone in range). His normal attack may also cause doom.
The next thing is that it's pretty hard to say to which element he's currently vulnerable, and if you finally find out which one is it, he'll immediately use Shift. You may want to set gambits like: "Foe: lightning weak ---> Thundaga", but if you don't have them don't bother searching for the weakness. If his HP reaches the critical level he'll use Paling so you'll just have to use magick now, but it's best to use non elemental one like Flare or Scythe.
Bounty: 4800 gil, Deimos Clay (1000 gil), Trickster's figure in Sky Pirate's Den.