User blog comment:Zolnir/RWBY Episode 8/General Reviews & Speculations/@comment-17099359-20130907023540/@comment-11188061-20130907025821

Even though Yang had exploded hers unnecessarily and used a lot of Auras when downing one Ursa entirely by herself?

Even when Phyrra unlocked Jaune's Aura and looked to have used up a lot of energy (mental or Aura or whatever) herself?

Even when Blake also took a full hit from the Death Stalker, not to mentioned got knocked off by a rebounding Nora and nearly straight into the abyss?

Even though Ruby and Weiss were hanging off a giant bird for god knows how long, not to mention running away from a forest fire, which was known to be able to spread really, really fast?

Even though Ruby decapitated a giant bird's head by running up a sheer cliff, even if it's with the help of Weiss' platforms and her own gunshots? Your hands need to be at least that strong to hold that much weight you know.

Not to mention our four girls doing acrobatics all over when the bird destroyed the entire platform and they had to jump all over falling stones to get to solid ground. Even Weiss Schnee, the corporate heiress, did not look winded.

Answer: Ren The Weak in body at the very least.