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.
Imagine Goku using Instant Transmission to get close to an enemy, and then Android 21 quickly follows up with her own set of attacks. Her ability to create powerful energy blasts combined with Goku's close - range combat skills would be a great combination. Also, Android 21 could potentially use her regeneration abilities to heal Goku if he gets injured during a fight. This would make them a very hard - to - defeat team, as they would be constantly supporting each other with their respective powers.
Android 21's intelligence regarding technology and combat strategies could be combined with Goku's combat instincts. Goku often relies on his gut feeling during battles, but with Android 21's analytical mind, they could plan out battles more effectively. Goku's Super Saiyan forms give him a huge boost in power, and Android 21 could potentially enhance those forms further. Maybe she could use her energy - manipulating abilities to stabilize Goku's transformations, allowing him to stay in a more powerful form for longer periods of time.
If we consider their powers combining, Naruto's ability to use chakra in various forms like Rasengan could be enhanced by Android 18's infinite energy source. For example, he could create a super - powered Rasengan that has the added strength of Android 18's energy. The chakra flow could be amplified, making it more destructive.
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.
If Naruto's chakra-based powers and Mizore's abilities were to combine, it could create some really interesting effects. For example, Naruto could use his Shadow Clone Jutsu and Mizore could freeze the clones, creating ice - clone hybrids that could be used for both offense and defense.
Naruto's chakra and Raava's spiritual energy could mix in a unique way. For example, Naruto's Rasengan could be infused with Raava's light energy, creating a more powerful and spiritually charged attack.
Yoruichi has her unique cat - like abilities in the Bleach universe. If combined with Naruto's shadow clone jutsu, they could create some really interesting combat strategies. The shadow clones could be used to distract enemies while Yoruichi sneaks up on them with her stealth. And Naruto could use Yoruichi's knowledge of reiatsu (equivalent to chakra in a way) to better understand his own chakra limits and how to break through them.
Naruto's chakra-based powers and Powergirl's superhuman abilities could combine in interesting ways. For example, Naruto could use his chakra to enhance Powergirl's strength even further. He could also use his shadow clone jutsu to create distractions while Powergirl attacks with her super strength or heat vision.
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.
Naruto has the power of the Nine - Tails, which is a huge source of chakra. Bishamon has her own reservoir of divine power. In a fanfiction, they could combine their powers by having Naruto transfer some of his chakra to Bishamon, who then uses it to supercharge her attacks. Or vice versa, Bishamon could bestow some of her divine essence on Naruto, allowing him to access new forms or abilities that are a blend of both ninja and divine powers.
Naruto's chakra - based powers could potentially combine with the unique abilities of the Ace of Clubs in a fanfiction. For example, if the Ace of Clubs has some sort of energy - based power, it could merge with Naruto's chakra to create a new, more powerful form of energy that can be used for various purposes like fighting off powerful enemies or solving complex problems.
Their powers could combine in some cool ways. For example, Spiderman could use his web - slinging to help Naruto move around in a more aerial way, which would be a new experience for Naruto. Naruto could use his chakra to enhance Spiderman's strength or speed temporarily. Maybe Naruto could even infuse his chakra into Spiderman's web shooters, making the webs stronger or having special effects like being able to trap enemies in a chakra - based prison.