So you’ve done a lot of quirks about what quirks would all for one want from various groups, so I was wondering assuming he successfully managed to get all of them what kind of combinations do you think he could use along side the other quirks he has. (To save you some trouble, here are the ones I found: Anivoice, Hardening, Explosion, Twin Impact, Black, Poltergeist, Gyrate, Clones, Cement, Barrier, Sloshed, Incite, Compress, Magnetism, Telepath, Lock Down, Earthflow)
Thank you, that was very considerate of your to do. Obviously, this is a lot of Quirks and combinations to consider. I'm going to try and cover what I believe are the most interesting combinations.
Impact Recoil+Twin Impact: Probably the simplest combination here, but arguably the most affective one, massively increasing the power and control they have of any kinetic impact that hits them.
Warping+Clones: Combing the two goos, he could have the clones at as allies for their warping affect, either using it teleport the clones or around himself around each other for a tactical advantage.
Rivet Stab+Barrier: Rather then something to improve the power of "Rivet Stab", he could combine these to extend the range of the barriers, either in sheer scope or using the rivets to apply it to specific targets.
Air Cannon+Compress: Instead of using it to compress and store objects, he could have these two work together to compress the air itself, leading to far more dangerous and varied explosive air attacks.
Radio Waves+Telepath: This could combine together to have him be able to directly communicate through electronics, using it to confuse people with false information and talk to people with electronics.
Lock Down+Earth Flow: These two are good control options in their own right would be greater together, turning the battlefield into a bizarre mess of earth that becomes an impenetrable wall, becoming a total labyrinth of harden walls and traps.
Gyrate+Magnetism: Instead of merely spinning, his body could act as a giant magnet, either violently pushing or pulling himself or various metals around depending on what parts are spinning, how they are spinning, and how much they spin.
Sloshed+Poltergeist: I would be interesting to have the control of objects mixed with the disorientation effect to have it affect the objects around it, working to dismantle and take apart things to make a chaotic mess of enemies and the battlefield.
Hardening+Explosion: You could make it so that he can potentially fire off the hardened exterior, similar to what "Scales" does, but I think the more interesting and dangerous mix would be to make it explode whenever someone tries to attack him.
Incite+Anivoice: While I could see someone trying to spin this as controlling people, I believe that more likely result would be enhancing the animals under his control, turning random animals into dangerous, mutated minions under his control.
Black+Cement: I like the idea of this combining into an ability that lets the user merging into concrete, becoming capable of moving, and controlling concrete, having much greater scope of movement. Think something like Pica from One Piece.