Curse of Achilles

The Curse of Achilles is a power and a curse that a person can acquire when they bathe in the @River Styx.

The curse is named after @Achilles, the Ancient Greek hero, who was famous for his invulnerability. When one bathes in the River Styx, they will be granted the power to remain uninjured by any means. However, they will always have one weak spot and if this weak spot is injured even in the slightest, the person will die. For @Percy Jackson, it was on the back. For Achilles, it was on his heel and for @Luke Castellan, it was on his armpit. For a person to successfully receive this curse, he must earn his parent's blessing before bathing in the river or it would kill whoever enters its shores. When one bathes in it, the person must envision one thing that ties them to the living. They also must imagine a single spot on their body that will be vulnerable and a rope tying them to the mortal plane. If they do not do this they will turn into ash and be forever lost in the River Styx. Though not proven, the thing a person usually envisions is often someone close. An example of this is when Percy bathes in the Styx, he envisioned @Annabeth Chase, the girl he loves.

Exposure to the water of the Little Tiber negates the curse permanently, because it is a Greek blessing/curse that could not be retained in territory belonging to the Romans (i.e. @Camp Jupiter), the enemies of the Greeks, according to @Hera.

Abilities

Anyone who bears the Curse of Achilles is nearly invulnerable, except in one weak point. They also get highly increased strength, speed, agility, reflexes, endurance, and fighting skills, also linking to their abilities, making it less tiresome to use immense powers. One such example of this is Percy, who was powerful enough to defeat @Hades, @Hyperion, a hundred skeletal warriors created by Hades, and a large fraction of the @Titan Army equivalent to hundreds of monsters after taking on the curse. The curse also allowed Achilles to slay a large amount of Trojans and @Amazons during the Trojan War.