The Scarlet Witch may have been the Mutant Mistress of Magic, but it wasn't enough to overcome the power and varied abilities of Raven. Boomstick: Her chances of victory were simply… shattered.
Raven's mental skills are far greater than Scarlet Witch's, which will deliver her the win. If there's anywhere Wanda is weak it's her mind and Raven has powers that would take advantage of that weakness, quickly ending the fight.
Raven was hunted by her demonic father Trigon for her amazing magical potential. She's easily the most powerful member of the Teen Titans and her magical knowledge has only grown over the years. She's a formidable force on any battlefield and her sheer power would surprise Doctor Strange.
Rogue is one of the X-Men's most formidable members. Her mutant ability to absorb the powers of others makes her a great powerhouse, as she can have the powers of anyone she touches. This ability has become even more potent since she mastered it, and it was also how she was able to kill Scarlet Witch.
Wolverine may be a better physical fighter and have accelerated healing abilities, but Wanda is one of Marvel's most powerful beings. As demonstrated in the storyline The House of M, Scarlet Witch is capable of changing the very fabric of reality.
Wanda is famous for her “no more mutants” feat where she wiped out a majority of mutantkind after making a world where mutants were the majority of the world population. In the MCU, Scarlet Witch may put up a good fight, but Thor wins majority if not all of the fights.
Titans #9 reveals that Donna Troy's power surpasses even Raven's, positioning her as the most powerful Titans member. Donna Troy's unparalleled will not only makes her the strongest Titan but also one of the most formidable heroes in the DC Universe. Donna Troy is the biggest threat to both Evil Raven and Trigon.
Raven can control the fabric of reality itself, which is what will allow her to defeat him. She's fast enough to stay ahead of his attacks and would definitely unleash her full force against Galactus.
Scarlet Witch's most important aspect in this fight is that she has the ability to defeat Superman. He is not impervious to magic, so her hits will damage him.
Emotions: Raven's primary weakness is her own unbridled emotions, which could potentially prove dangerous. Anger seems to be her most volatile emotion and though she exhibits great power in an enraged state, she loses control and is left somewhat vulnerable.
Raven normally holds back to not release Trigon and Black Adam would spit at the thought of low level magic. He has a pretty good invulnerability to it. So honestly, Raven would need to unhinge against Black Adam, but she could beat him.
Raven is superlatively powerful; her magical skill alone would be enough to challenge Darkseid. At full power, she can be a devastating opponent, but there's also a huge danger when she's tapped into her powers to that extent.
Raven has spent her ENTIRE LIFE learning to better control her powers. Scarlet Witch is very emotionally unstable, and as an empath, Raven feeds on those emotions like a vampire feeds on blood.
With the Phoenix Force, Jean Grey is an Omega level mutant, meaning there is simply no limit to what she can accomplish, and though the Scarlet Witch would certainly put up a strong, mind-bending fight, Jean Grey would likely take the victory during this huge battle.
How would Emma Frost fare in a battle against the Scarlet Witch? The Scarlet Witch at full power is far more potent than Emma Frost - provided that this is purely about power level.
The way Raven kills Phoenix at the end of the fight mirrors how she defeated Trigon in both the The New Teen Titans comics and the Teen Titans animated series.
Originally Answered: Can Raven from DC comics solo the Marvel universe? Nope. There is no single DC character who could solo the Marvel Universe, just as there is no single Marvel character who could solo the DC universe. There are too many uber-powerful players in both universes.
In a Teen Titan's book, Raven would win, but feel bad about it. In Iron Man's book, he would win because he's Ironman, billionaire, engineer, philanthropist, and it's his damn book.
Human-Demon Hybrid: As the half-demon daughter of the inter-dimensional demon Trigon, Raven is very powerful and Raven has a host of unique abilities. It was noted by her father Trigon that she only uses a small potential of her power, and if she lets out her full inner demon, she may reach near-infinite power.
The Titans were able to defeat her with the help of Phantasm. Raven returned later, still corrupted, in order to destroy her good self which she had implanted in Starfire. The Titans defeated her once again, for the last time. The good Raven was instilled into a new golden spirit body.
Although he is an extremely skilled marksman, Clint Barton is often considered to be the weakest member of the team seeing as he's just a regular guy with a bow and arrow. That certainly means that Hawkeye one of the weakest Avengers.
A stealthy application of Scarlet Witch's magic could take down a Hulk, but if they realize what she's up to, their emotional reaction is likely to be enough to give them a chance to stop her.
Her full potential was not showcased until WandaVision. Scarlet Witch was by far the most powerful MCU Phase 4 character, yet Wanda could not beat Thanos in either Avengers: Infinity War or Avengers: Endgame.
