Jizoh on Minotaur's Labyrinth
Farming Minotaur is hard enough, especially without the right characters, Jizoh can be built for sustain and outlive the Minotaur. I would say free to play friendly since you can get a Jizoh at 14 days login. Though getting to the boss fight might need some help from the rest of the team. Frost Bringer as leader for the extra defense, since Jizoh scales off Defense as his damage scalar.