Modded characters are supported in TQVault if you select the mod in the configuration window. This will allow you to reset both masteries so she would be able to choose new ones. Attribute points would also be reset and she could change her skill points/health/energy as well. Click on Enable Custom Maps and then choose the mod then also tick the enable character editing. TQVault will tell you it needs to restart and once it's done that select the character and edit as needed. Shew would then need to go ingame and make the new selections and distribute her points.