]Intelligence:
Gifted generally, Extraordinary Genius combatant (Ruby is extremely knowledgeable regarding weapons, having designed and built Crescent Rose from scratch during her time at Signal Academy when she was a preteen, and being able to name every individual part of her weapon. When she was a teen she was capable of analyzing a weapon she's never seen before down to the function and the material it's made of just by looking at it once, even when suffering from severe stage fright. She also possesses superb combat prowess, having received training from her uncle Qrow. She is capable of taking on entire hordes of Grimm on her own and walking away without a scratch and utilizing the different functionalities of the Crescent Rose, such as the massive recoil from the rifle aspect of the weapon and the weapon's transformative capabilities, in tandem with each other and her Semblance in order to maintain an edge over her opponent. Ozpin himself has stated that it would take someone with skill comparable to that of Qrow in order to wield Crescent Rose to its fullest efficiency. Ruby is a master of prodigal skill when it comes to martial arts, with years of experience fighting against powerful opponents with a plethora of abilities. As a sixteen year old, she was able to beat martial artists on such a level as Bann Belladonna post-beacon, who was an unparalleled master in all martial arts like Grampa Gohan.
At her time at beacon she was able to not only learn how to use Ki during a short semester break, but becoming skilled enough with it to mimic the attacks of others using Ki after seeing them only once, such as Penny's sword beams and Jaune's ki disks, and her skill with Ki is such that it even impressed the likes of Pyrrha during their fights.
In Mistral Ruby also received additional hand to hand combat training from Bann and Ozpin, enough that she and her team defeated the likes of the Ace Ops with ease in atlas, with the Ace Ops begrudgingly admitting that they had been going all out during their fight. She learnt to tap into the state of mind to use her Silver Eyes, that Miria called a "Trial by fire" due to needing to focusing on what you wish to protect in a stressful situation near Grimm[134] and she did this within a few months, later in life this Silver Eye training to stay calm and focused on a state of mind is one of the reasons she gained Ultra Instinct. She came up with a loophole to get Penny a new permanent body to save her from the virus that would destroy her, Given her knowing that Penny has a soul, and how the staff can only make one thing at a time but can't destroy anything she made sure to ask "make a exact copy of Penny only using her robot part" given all that'd be left is Penny's soul, but he can't destroy anything so he'd need to be forced to get creative and basically make Penny a human body to house her soul for free without her human body vanishing when he made something new while Penny's duplicated robot body vanished[135]
In the 5 years between the fall of Atlas and Z, Ruby has trained with Korin, Mr. Popo, Kami, and Bann to further hone her Ki and martial skill, and after an additional year of training she helped Bann and Penny fight off Vegeta despite him being stronger than them separately, even devising a plan to counteract Vegeta's Great Ape forms utilizing everyone's semblances to their advantage in order to cut off their tails.
She and her teamwork was seen as enough of a threat by Frieza that he was forced to go 100% despite only at max having a power level of 3,000,000, and after getting killed by Frieza in his final form she ran snake way with Piccolo and trained under King Kai, learning the Kaioken, Spirit Bomb, and Fusion Dance in just 2 months, as well as sparring with Pyrrha, who had been training with the best fighters of the afterlife.
After 4 years passed Ruby then faced off and held her own fighting Holly, a half-Saiyan hybrid cyborg made from Bann and Weiss' DNA by Watts and has both of their combat skill combined, with her only losing when she went super saiyan.
Ruby continued training in the 7 years after the Android Saga, becoming powerful enough and skilled enough that Shin saw Ruby as a strong ally to help stop Buu's revival, as well as matching Dabora in combat and completely out matching him immediately upon getting serious. Vegeta thought to himself that Ruby is even tougher to fight then Bann even disarmed due to her combat style relying more on speed and momentum and giving her foe no time to breath. She then trained with the Z-Sword for a day under the Kais, with Elder Kai then unlocking her potential to give her the power to beat Buu, who had already absorbed Quart and Piccolo with both Elder Kai and Shin agreeing that her skill and power post-potential unlocking would be sufficient to defeat Buu until Buu absorbed Raditz and Piccolo, but despite her being weaker than Buu with them absorbed, she still held her own.
She was praised by Beerus as a genius for being so experienced so as to make her own Ultra Form based around her Silver Eye's Preservation Energy. Later in Super, before adapting to Hit's Time-Skip, she was able to predict the movements he'd make in the 0.5 seconds of skipped time and react properly, beating a technique that for over 1000 years was completely unstoppable, even as Hit was constantly improving said technique in battle. Ruby mastered Ultra Instinct, a technique even the gods of destruction have deemed a difficult task, with none of them stating to have mastered it, including Beerus, despite being hundreds of millions of years older with experience as a God of Destruction. She also had performed such a feat in less than 48 minutes and is the only mortal other then Bann, Quart and Light (who was made from her and Vegeta's DNA, abilities, techniques, their mannerisms, and their skills) in all 12 universes to have mastered the technique. She can rely purely on her muscle memory and something "beyond" instinct to fight, no longer needing to consciously think to do so while being more serious in this form. In all of Universe 7, she is among the most skilled warriors to exist, superior to master martial artists such as Ozpin, Piccolo, the Kais, and only rivaled by Vegeta, Raditz, Bann, Quart, and Light, being labeled as one of the only few who can entertain Beerus, the God of Destruction of Universe 7. Among all 12 universes, she is one of if not the most skilled fighter, superior to many other master-level warriors and beings thousands up to millions of years older than her, being stated to have surpassed the gods. Was able to go toe to toe with Moro, a being who absorbed seven-three and copied her abilities, techniques, their mannerisms, and their skills from two months ago alongside Vegeta's, and Merus'. She can fight opponents much faster and stronger than her such as Granolah and keep up with them, with him being able to one shot her, via sheer skill. She was able to create such minute movements so as to avoid Granolah's pressure point attacks from hitting her vitals which could defeat her in one attack since she couldn't dodge them completely. She fought against Light Rose, a being created by a genius scientist to be the ultimate warrior made from Ruby and Vegeta's DNA, using 27 years of footage of Ruby and Vegeta, copying their techniques, their mannerisms, and their skills to create him, also having knowledge on how she approaches battle as well
Ruby found a way to stack her Kaio-ken technique on top of Ultra Synergy to make up for the fact Ultra Synergy doesn't grow as fast in power as Ultra Instinct and Ultra Ego. She took advantage of the fact that, unlike Ultra Instinct, Ultra Synergy has no stamina problems and unlike Ultra Ego doesn't have a problem with negative emotions, instead having a calm and focused mindset fueling her power. As her power is based on confidence and drive to do her perception of good and although not as fast as Ultra Instinct or Ultra Ego, she has a greater control of movements and power distribution/control, thus making Ultra Synergy the only Ultra State that can use the Kaio-ken[
