Jesús García's Brake Wheel

Origin
Jesús García Corona (13 November 1881 – 7 November 1907) was a Mexican railroad brakeman who died while preventing a train loaded with dynamite from exploding near Nacozari, Sonora, in 1907. As el héroe de Nacozari he is revered as a national hero and many streets, plazas, and schools across Mexico are named for him.

Jesús García was the railroad brakeman for the train that covered the line between Nacozari, Sonora, and Douglas, Arizona. On 7 November 1907 the train was stopped in the town and, as he was resting, he saw that some hay on the roof of a car containing dynamite had caught fire. The cause of the fire was that the locomotive's firebox was failing and sparks were going out from the smokestack. The wind blew them and got into the dynamite cars. García drove the train in reverse downhill at full-steam six kilometers out of the town before the dynamite exploded, killing him and sparing the population of the mining town.

Effects
When touched, the artifact's effects remain dormant until a situation has arisen where the affected would be able to save others at the sacrifice of themselves. The effects will compel the user to do so, and will alter any odds opposing them so that they may succeed.