Rabbit: Rumi's Quirk gives her the attributes and abilities of a rabbit. This grants her incredible leg strength, allowing her to jump and kick with extreme force; she can even destroy large chunks of the ground by thumping her foot. She also has excellent hearing thanks to her rabbit-like ears and possesses animal instincts that alert her to nearby danger.
Luna Ring: Rumi uses her incredible leg strength to kick multiple targets simultaneously as she performs a cartwheel in the air with her legs extended.
Luna Fall: Rumi swings her foot downwards while she is above her opponent, driving her target straight into the ground beneath her feet with a mighty kick.
Luna Tijeras: Rumi mounts onto her opponent's head and grips them tightly with her legs before twisting her body, pulling with all of her superhuman leg strength to rip her opponent's head cleanly off and then smashing it into the ground.
Luna Arc: Rumi raises her leg and delivers a powerful front-facing axe kick on to her opponent.
Luna Rush: Mirko rushes towards her opponent and pummels them with a series of powerful kicks.
Enhanced Strength: Rumi has proved to possess incredible physical strength, being able to easily defeat several Nomus and to break down the huge metal gate that kept Kyudai Garaki's secret laboratory. Remarkably, she was able to momentarily incapacitate some of the High-End Nomu and sever one of their heads. However, after they started to stabilize, she was quickly overwhelmed by them to the point that she was prepared to die and decided to finish off Doctor Garaki to take him with her. Later, her strength proved capable enough to force back the rapidly evolving "Tomura", though she was quickly defeated once "Tomura" progressed to his final defense form.
Enhanced Speed: In conjunction with her level of physical strength, Rumi possesses an equally impressive amount of speed. Her speed allowed her to reach Kyudai's laboratory in just a few minutes, being barely slowed by the Nomus that tried to stop her. She was also fast enough to keep up with the High-End Nomu, but once they began to stabilize, Rumi was unable to land any more blows on the High-Ends. Later her speed was shown to be enough to outpace "Tomura" in battle, but her speed quickly proved inadequate to outpace his final form.
Enhanced Dexterity: Rumi has shown to possess incredible control over her limbs and body, as seen when she fights multiple High-Ends.
Enhanced Agility: Rumi has shown to have incredible agility.
High Pain Tolerance: During the Hospital Raid, Rumi's left forearm was crushed, and she was forced to cut it off completely yet continued to engage in extremely intense combat without issue. She kept moving even though she was experiencing pain. Even after sustaining major injuries, she was still able to seemingly ignore the pain enough to achieve her objective and destroy Tomura's container.
Master Hand-to-Hand Combatant: Due to her Quirk, Rumi primarily relies on hand-to-hand combat to restrain and incapacitate Villains. Thanks to her strong legs, she heavily favors kicks in her fighting style, matched with incredible speed and the ability to build up momentum by jumping from one spot to the next.
Intuition: As seen during the Heroes' raid against Kyudai's hospital and against the High-End Nomus, Rumi showcased to have immensely sharp instincts and intuition, with her having been able to detect the severe danger Tomura possessed despite him being medically deceased.
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