Pascal has the best Stat Gain compared to the rest of the party member, with her stoongest B Arte, Eight Celestial, has the highest Damage Multiplier, only second to Indignation but cast 2.5 second faster.
Other than that, only she and Asbel has a Glory like Skill, where upon activating one of her B Arte, she has a chance to remain unstaggered until the end of the casting time. That means no spell interruption from enemy unless it is a BC.
Her A Arte are more suited toward Range whereas he B Arte promote Melee distance. Her AoE Damage is magnificent, with Magnetic Gate allowing her to draw enemy closer into her for her more devastating AoE B Arte.
She even has a few B Arte focusing on buffing party members or herself, such as Assault Sign, increasing P.ATK, or Rampart Sign, increasing P.DEF, and finally Shine Field, recovering 25% HP of all party member within range. Casting Time are 1 second for the former two, with approximately 3.83 second on the latter one.
Pascal's Accel Mode allow her to create a dome shape field. In that dome shape field, all party members are unstaggerable, reducing the damage dealt to party members as well, ideal for mage focused team.
She also receive her 3rd BC fairly early in the game compared to the rest of the party member, so she will be perfectly suitable to be your main DD, Damage Dealer, during the mid part of the game.
She has a more technical design to her moves. It requires you to be constantly aware of your position in relation to allies or enemies on the battlefield in order to be effective with her.
She is however weak at HP, M.DEF and ACC initially, so you might find her to be pretty hard to use when you first get her.