Surprise attack

Surprise Attack is a highly-skilled superhero, having a natural knack for his own power, As a kid, Surprise Attack received a necklace from his parents. Later (likely in his late, teen years) , a supervillain named Joseph Joestar tried to steal the necklace. Joestar, a unknown supervillain, explained that the necklace contained the rare 'element of surprise'. After failing to defeat Joestar, who had cornered him, Surprise Attack swallowed the pendant, gaining the powers of the element that had resided within, as he soon defeated the very concept of predictability, giving him the ability to manipulate the very concept of surprise and unpredictability, being able to revive from death due to the element of surprise, which means no matter the outcome, he warps reality to make you surprised, even attacking someone inside a flashback, he isn't even an "unknown" superhero, as the police officer and even the villains seem to know who he is. Who wields a trusty scythe and small bow staff.