One-Shot

''Maaaaan...

When someone One-Shots, they kill or defeat someone or destroy something in a single hit. This can be either because the attacker is very strong, the target is very weak, or both. A fighter or weapon who can One-Shot is obviously a very dangerous threat and, if they're the enemy of the Hero, will almost always have some sort of exploitable weakness that the Hero must figure out because that weakness isn't readily obvious or visible.