Ultros. The Final Fantasy VI references were awesome. Especially the description of the stolen goods. "Don't tease the... flan?"
I was at level 25 at the Paramina rift. I saw the Trickster, so I'm like YEAH YOU GO DIE NOW. It had a little bit of HP left, then it became immune to my attacks and started Choco-Comet-ing me to death. He was pretty awesome, though.
Not a mark, but, chocobos....
I can't kill them, even if they attack me first I have to run away...just too cute.