Not on the first try, because Opalyn is going to have to learn precise emission of magic nearly from scratch. Orphan had zero spellcraft of this sort because she never needed or used it for anything.
She can output the magical energies that are supposed to start off the spell--indefinitely, the spell is designed for sub-Baron-level wizards and it's not like Opalyn's stamina is inhibited. She can't get past stage 1 in terms of having the emitted energies interact with each other in the way that constructs the force-construct at stage 2 which she's then supposed to bounce more energy at and get to stage 3.
It is supposed to be a difficult exercise that helps wizards labeled adequate by not this author, to become more adequate than that.
