Elm is a tall young muscular woman with medium brown hair in a short ponytail, brown-tan skin, and brown eyes. She wears an Atlesian Specialist uniform that consists of an open white, one-sleeved crop jacket with dark blue accents, shoulder flaps and collar and a dark gray shirt. She has silver vambraces over her forearms She has a red belt around her white pants and goes barefoot save for some martial arts footwraps alongside dark blue calf plates that cover the tops of her feet, the plates have three red straps tied around them; the soles of her feet are appropriately dirty as a result. She also has a silver hoop earring on her right ear.
Elm is described by her voice actress, Dawn M. Bennett, as being a "big buff lady with a heart of gold", illustrating she has a very kind and good nature. She also shows to be a tough and loud person who is not afraid to let someone know what is on her mind.
She appears to be somewhat overzealous, such as when she rushed to Ruby and stated how bad she felt not knowing who she was when her team arrested her and her friends, all while shaking the girl's hand with great force. She is stated to not have a filter.
Elm, like other members of the Ace-Ops team, does not consider her teammates to be friends, laughing the idea off. Additionally, despite being fairly loud herself, Elm is confused by other over-the-top behavior of people such as Nora Valkyrie.
Elm is intensely loyal to James Ironwood, not questioning any of his orders, citing she only needs to follow them. When Team RWBY reveals they told about the Amity Communications Tower to Robyn Hill, she is disheartened at their apparent betrayal and became hostile towards the four girls, deeming them traitors. This extends to the subsequent fight, where she disagrees with Vine's claim they won't be hurt if they surrender. She was, however, shocked after Yang stated that she and the other Ace-Ops were only 'following orders', before furiously shoving Blake aside to go after Yang, hinting to her hidden conflicted feelings on the matter.
Despite everything, Elm was shown to be conflicted at having to fight Team RWBY, which was noted by Vine, who concluded that Elm was in truth reassuring herself she was making the right choice in trying to apprehend the girls. However, she became increasingly aggressive and violent as the fight progressed, and was willing to use brutal force against them due to Yang's taunts.
Like the rest of her teammates, she is constantly repressing her true emotions. After Robyn Hill asks them in "Worthy" what was more important, the people or the land they lived on, she stops suppressing them after Harriet decides to bomb Mantle herself and manages to talk her out of doing it by telling her that they are friends. She is also saddened when she is forced to watch Vine sacrifice himself to save them from the bomb.
Powers and Abilities
Elm is a skilled fighter, being part of the Atlesian Special Operatives unit, the most elite group of Huntsmen and Huntresses in Remnant. Elm is stated to be the second most skilled member of the Ace Operatives, surpassed on by Clover due to his Semblance bringing good luck to himself. She is noted as an excellent agent with a peerless track record.
Befitting her size and build, Elm possesses a high level of strength, able to swing her massive hammer with earth-shattering force. She has also proved to be powerful enough to throw massive Grimm, like a Megoliath, high into the air. Elm shows a restrained style when entering battle, along with the Ace-Ops, surprised by Team JNPR's headfirst approach.
- Main article: Timber
Elm's weapon of choice is Timber, a massive hammer/rocket launcher hybrid, whose strength is enough to kill a pair of Megoliaths in one hit. Timber's recoil is powerful enough to the point where Elm needs to use her Semblance to not be blown away by the force exerted from it.
- Main article: Aura Roots
Elm's Semblance, Aura Roots, allows her to plant herself in place, causing her to seemingly be unmovable for its duration, allowing for greater strength to be put in blows. Thanks to her Semblance, she is capable of holding the Frosted Petra Gigas Geist in its place by grabbing its leg and successfully stop a charging Megoliath in its tracks.
Elm's Semblance also makes her perfect in using heavy artillery type weapons, due to the fact that she could easily root herself to the ground to prevent the weapons' immense recoil to fling her right off her feet. The obvious weakness of her Semblance is that it is dependent on the stability of the ground beneath her feet: in situations where the ground is unstable or broken, her Semblance becomes useless, if not detrimental due to instead latching on to broken pieces of stone, effectively putting weights on Elm's feet.
- Like other members of Ace-Ops, Elm likely alludes to Aesop's Fables, particularly The Elm and The Vine, which her team partner Vine Zeki is also alluded to.
- "Elm" may refer to the trees of the same name which have dark green leaves.
- The name Ederne is a female name of Basque origin meaning "beautiful" or "handsome".
- Elm was designed by concept artist Larissa Angus.