What a terrible group. Two DPS. And a mage and warrior no less. What do they intend to do? They have NO survivability. Give em a damn tank, or at least a healer.
What makes you think Dash is a warrior? With her speed and agility, and the fact that she's wearing light armor, she's clearly a Nightblade. Also, I have no idea what kind of mages you've been hanging out with, but even a rookie caster should know at least one good healing spell.
Dash is too bright of a personality to be a Nightblade. I'm going off of the sword and the style of helmet that she's a warrior, otherwise maybe a ranger... And mages don't do healing. Clerics or priests are cloth wearing healer classes, and she's clearly wearing cloth. Not to mention healer's usually use tomes or no weapon, rather than staves. (but really, even if she COULD use healing spells, Trixie probably isn't the type to do so.)
In order to be considered a true mage, a spellcaster must first study all of the schools of magic, and then choose a field to specialize in. Even if a mage specializes in Illusion or Destruction, she would still know spells of Conjuration or Restoration. Trixie obviously specializes in Alteration, with a lesser focus on Illusion.
Restoration is hardly a school of magic. It's a specialization of white magic, as opposed to doing holy damage with it. And conjuration is much more associated with creatures/minions, but can also be for food, maybe with restorative properties, but that is (in most cases) useless in combat. But my original statement still stands that the two of them would have a hard time running as a duo. They should probably invite Fluttershy who would most likely be a druid healer or one of the more assisting classes. If noone else at least shining armor who can tank as a paladin. (I am 100% certain he would be no other class)