Celenia

*She's quite a decent buffer with 30% Crit Rate and Crit DMG buffs for the whole party. However, she is outshined by Wedding Lin in the buffs department.
*Her healing is decent at best. 
*She has another buff that , like Reny, reduces incoming Magic Damage by 20%, but in addition also gives all alies a 15% HP buff. This reduction can be stacked with Eline and Nohara. But when you absolutely don't need this buff, go for Wedding Lin as she's the best buffer.