I have a level 2x Yuki at the moment. Her equips are currently obtainable by Genos and buying it from the High Level PVP merchant. Not sure about raids. I'm not necessarily sure on how fast her Melee is, I'm a stager and pvped for like an hour with her yesterday. So.. Not sure yet. I don't believe she's overpowered, but she has very stable damage and in stages, deal enormous damage in a very quick period of time. Not very experienced with her pvp side yet.
Yuki's blesses are the same as dainns, I believe the same order too and same level up effects. 1st is MP buff, the rest are elemental resistant buffs.
B> Eir Rock Soul Equips.