Fate picks out individuals, chooses them for greatness. Those who are blessed by fate become renowned for great deeds, battles won, triumphs gained. Unlikely for these few, the ignominy of death from the stray arrow of a skillless peasant.
At any time a Player Character may spend a single fate point to change a dice roll made by them, or against them, by exactly plus or minus 50. Multiple fate points may not be spent on the same roll. Each PC starts with one fate point. Additional fate points will be awarded when the character performs an action that would be noticed by fate.
Warning: Fate is a fickle mistress! And while your deeds may win her charms, she may just as likely favour your opponents.