She couldn't 'summon' [='muster'] the strength/energy to finish the race.
Visiting his old house 'summoned up' memories of his childhood.
He finally 'summoned up' the courage to ask her out on a date.
(..) I don't know. It's never done that before. I know you, from the library. I used the last of my energies to summon you here. - The Guardian has betrayed us. - Medivh. - I saw the fel in his eyes. - He is consumed by it. If he is not stopped, (..)2016 Warcraft