T'rahnu's parents were both former adventurers, so that helps quite a bit. She's also quite talented, with an extremely high 'physical intelligence' and an aptitude for manipulating her own personal aether. This, in combination with her numbness to physical hardship, makes her extremely good at pretty much any form of melee combat once she's got some training in.
And then there's the Echo on top of it. She can see actions occurring a scant few seconds into the future, allowing her to react accordingly... which, frankly, is just a ridiculously OP power to have. However, due to her relatively passive nature, this generally just makes her really hard to kill, rather than giving her the ability to slay someone on a whim.
Why does she have it? Well, why does anyone have the Echo? I can't answer that, because no one else really can. We know that both those blessed by Hydaelyn and those chosen by Zodiark (the Ascians) can possess it, yet the Blessing of Light and Dark are both orthogonal to the Echo, as the Warrior of Light stand-in still possesses the latter despite having the former stripped from him by you-know-who. So that's just one of those things I handwave, at least until we have more concrete lore on the ability.
And then there's the Echo on top of it. She can see actions occurring a scant few seconds into the future, allowing her to react accordingly... which, frankly, is just a ridiculously OP power to have. However, due to her relatively passive nature, this generally just makes her really hard to kill, rather than giving her the ability to slay someone on a whim.
Why does she have it? Well, why does anyone have the Echo? I can't answer that, because no one else really can. We know that both those blessed by Hydaelyn and those chosen by Zodiark (the Ascians) can possess it, yet the Blessing of Light and Dark are both orthogonal to the Echo, as the Warrior of Light stand-in still possesses the latter despite having the former stripped from him by you-know-who. So that's just one of those things I handwave, at least until we have more concrete lore on the ability.
