If you don't know who Griselda was, that's not really your fault - she was a character who lived and died during the original Warcraft game. But to my mind Griselda is a perfect example of the way you can make use of the parallel world of Draenor we're going to visit, a character who can highlight the ways that things have changed.
Originally, Griselda was one of the three children of Blackhand the Destroyer, and like her brothers Rend and Maim, she was artificially aged to adulthood via warlock magic and trained to fight. But unlike her brothers, her father denied her the blood of Mannoroth (so, ironically, she was spared the blood curse) and would not give her a position of authority like the ones he'd given Rend and Maim. This was a colossal act of disdain on his part - he'd stolen her childhood from her, turned her into a weapon, and then refused to make use of her. Why he did this is unclear - it's often said it was a punishment for her insolence, but we don't know what that insolence entailed.
Her fate in our timeline (turning against her father, running to the Deadmines alongside an ogre named Turok, assassinated by her father's warriors) isn't what I'm interested in, however. It's how the Griselda of this Draenor could turn out that interests me.