Wrong category. Oh well. Anyway. Here look:

Divine Power: Susanoo Rampage: Sasuke summons Gedo Mazu and encases it with Perfect Susanoo. Using the 10 Tails husk (whether empty/partially full/full) as a vessel to compliment each others enormous power. Gedo Mazu already having lightning release would surely increase Perfect Susanoo's lightning style a thousand fold. Being much more destructive. This also gives him the ability to open its mouth or project it from his hands to shout Outer Path Chains to bind Bijuu level beings. Running chidori through the chains for absolute knock out or restrain them quicker (paralysis).

Absolute Vision Combo: Sasuke summons all his Rennigan animals. Or just the dog for it to grow heads and split apart. The animals would scatter and be in certain locations hiding (if possible) or just plainly out of battle or could be use as a shield to block incoming attacks, depending on what it is. This would give Sasuke beyond 360 degree vision as well as having a "satellite" view from the Drilled Beak Bird circling in the sky. Having no blind spots and precognition, its gonna be extremely hard to catch Sasuke "off guard" you guys say.

Six Paths: Darkness Neutralizer: If Sasuke ever loses his sword in mid battle. This is no problem. As he can make a black rod the same length and infuse it with his "Onyx Chidori." Which I believe in the game that was also used in manga, it is Six Paths chidori. So this technique wouldn't cancel itself out due to it not being regular ninjutsu. Not only this being a stronger weapon, this would literally negate any (realistically/I don't think it can negate things like Planetary Devastation lol) ninjutsu and impale the person. Not only paralyzing them with lightning, but also disturbing their chakra flow, locking them in place, losing chakra as well as preventing them to use jutsu.

Blaze Style: Almighty Push: Sasuke surrounds himself with amaterasu and then uses Almighty Push to push it back, creating an omnidirectional force field hitting anyone near by while catching on fire.

Six Paths: Drastic Over Kill: Let's say Sasuke is fighting someone and he said "Fuck this. I need two hands." He uses Asura Path to casually generate a robotic arm, increasing skill in Taijutsu. Then in comes to a point they clash with interlocking hands like Obito and Kakashi. Just like how HulkBuster and locked Hulk's fist. Sasuke locks the opponents hands in places by morphing both hands as "canons" to hold them still. Then he creates additional 4 arms. 2 of them to stab them with black rods and then the others 2 create a massive Iron Man style laser canon in their face that's clearly enough to kill Jinjuurikis and destroy Planetary Devastation (via game/Shouldn't be a stretch imo).

King of Hell: Sasuke becomes so heavily injured, it would make Naruto and Sakura healing look like Genin. Sasuke summons the King, grabs and chews Sasuke and come out completely brand new. Possibly even regenerated his chakra to 100%. Since Kakashi died of chakra loss. He had to gain all or at least half to come back. But he could also use this by using universal pull and the King of Hell would create multiple tongues with hands grabbing their very souls/tongues.

Drastic overkill sounds cool so I’m going with that