Andres Amarantos: Amaranth of the Brave (勇者の不凋花, lit. Brave Amaranth?) is Achilles' gift of immortality from his mother, the goddess Thetis, not including his weak-point, his heel. Any type of attack against him is nullified, even including great Noble Phantasms like Balmung, and it cannot be pierced by power alone. It can only be negated by those with Divinity of a certain rank, at most C-rank, or higher, allowing those of that rank to harm him with any attack.Saber of Black, with no Divinity, is unable to give him a single wound in drawn-out combat, while Archer of Black, with C-rank Divinity, is able to draw blood with a simple arrow. Invasive acts that are considered to be "friendly actions" like a being bitten by a vampire are not negated.