With a sense of determination, Zarra will offer to the others, 'if we're going to be attacking right away, I'm going to cast invisibility on myself now. If we can find and engage the prince, I will attack while he's distracted. If needs be, I will use misty step to get closer to him faster. That way we can take him down as quickly as possible.'
The drow hoped her companions would be approving of her plan. Yes, it would mean possibly burning two of her spells simply to get in one assured sneak attack, or at least hopefully so unless the dragoness was able to warn her lover and disrupt this… yet she felt it was still worth the try.