If we think about their power combination in terms of defense, Goku's ki can be used to create a shield. Captain Marvel's energy absorption ability could be used to strengthen that shield. So when faced with a powerful attack, Captain Marvel absorbs some of the incoming energy and channels it into Goku's ki shield. On the offensive side, Goku's signature Kamehameha wave could be infused with Captain Marvel's energy signature. This would not only increase the power of the attack but also give it some unique properties like being able to penetrate energy - based defenses more easily, since Captain Marvel's energy has a different nature compared to Goku's ki.
Goku's Saiyan powers, like his Super Saiyan forms which boost his strength, speed, and energy output, could combine with Captain Marvel's energy - based powers. For instance, if they were to perform a joint attack, Goku could charge up a large amount of ki energy while Captain Marvel adds her photon - based energy. The result could be an extremely powerful blast that could take out even the toughest of enemies.
Percy's power over water and Captain Marvel's ability to fly and her energy projection could combine in a cool way. For example, Percy could create a large water spout, and Captain Marvel could fly around it, charging it with her energy. Then they could direct this super - charged water spout at their enemies. It would be a powerful combination of elemental and energy - based powers.
Well, Goku's Saiyan powers are all about brute strength, speed, and the ability to transform into more powerful forms. Android 21 has her unique android abilities like energy absorption and regeneration. If they combined their powers, they could create some really powerful attacks. For example, Goku could charge up a Kamehameha while Android 21 absorbs energy from the surrounding environment to make the attack even stronger. Their combined speed would also make them a formidable duo in battle.
Their powers could combine in a fusion. Just like how Goku has fused with Vegeta in the past, he could potentially fuse with Caulifla. This would create a new and extremely powerful warrior. Their combined Saiyan powers along with their unique fighting styles would make for an unbeatable force.
Lucina's combat skills and swordsmanship could be combined with Spiderman's acrobatic fighting style. They could perform coordinated attacks where Spiderman uses his speed and agility to distract enemies while Lucina strikes with her sword. Their combined power would be a formidable force against any foe.
Well, Naruto's Sage Mode gives him enhanced physical abilities and the ability to sense chakra. In a Marvel fanfic, if combined with Marvel powers, it could be really interesting. For example, if he had some sort of connection with the Hulk's gamma - based powers, his Sage - enhanced strength could reach new levels. Maybe his chakra sensing could be used to detect other types of energy in the Marvel universe, like the Cosmic Energy.
Loki's illusions combined with Spider - Man's acrobatic skills would be a great combination. Spider - Man could move within Loki's illusions, confusing their enemies even more. And if Loki were to use his telekinesis to move objects, Spider - Man could use his webs to direct those objects towards their enemies. Also, Spider - Man's ability to stick to walls could be used in Loki's lairs or magical structures, allowing him to navigate them more easily while Loki uses his magic to deal with any traps or guards.
If the fallen angel has the ability to manipulate time or space on a small scale, Naruto could use this in his combat strategy. He could use his speed and the fallen angel's time - bending ability to move so fast that the enemy can't keep up. In terms of power combination, Naruto's Nine - Tails chakra could be merged with the fallen angel's dark or light energy (depending on her nature). This could result in a transformation that gives Naruto new abilities like wings made of chakra and light, allowing him to fly and attack with new types of energy - based attacks.
Their powers could combine in combat. Naruto's Rinnegan - based abilities like the ability to absorb or deflect attacks could be used to protect Yugito while she unleashes her Jinchuriki powers. For example, if she goes into her partial - tailed beast form, Naruto can use his Rinnegan to shield her from incoming attacks that she might not be able to dodge in that form.
Naruto's chakra control could be used to enhance Cheetara's own energy. She could channel Naruto's chakra into her attacks, making them more powerful. In return, Cheetara could use her agility to help Naruto dodge attacks more effectively while he is in the middle of using his more powerful jutsus.
Optimus Prime's strength and ability to transform could be combined with RWBY's unique semblances. For example, Ruby's speed semblance could be enhanced when she rides on Optimus in his vehicle form. Or Yang's strength semblance could be amplified when she teams up with Optimus in a fight, using his power as a boost.