Granger

Augments: Acuity, Articulacy, Bastion, Conservation, Emphasis, and Stability — increasing damage, cast speed, physical defense, stamina reduction, knockdown power and stagger/knockback resist.
*Fully golden-forged gear.

Granger has 3-star knowledge in every quest in the game. Therefore, she's invaluable regarding information.

She can inflict all 3 types of elemental damage with her Secondary skills, and that's great since it's gonna be possible to explore the enemies' weaknesses easily. Also, she can apply poison, silence, and torpor within the Primary skills.

With 1st-tier skills and, she casts a lot faster and uses less stamina.
*Wyrmking's Ring is recommended so she can cast even faster.

Resists 100% of lots of debuffs, including stagger and knockdown.

Her Bestiary is around 80% completed, which means she is pretty good at beating different foes.