A/N: I will post my non-crossover ideas in this chapter

My Hero Academia: The power of the elements

Izuku Midorya wasn't quirkless, but instead has a source quirk that gives him full control over all the elements(Autor decides wich elements)

Kamen Rider Build: The Second Evolution

After Watching the debut of Genius Build a teenager gets sucked in the world of build in the same moment with the full set of the Evol-driver, EvolFullBottles, Evol Trigger and a the special edition EvolLock and EvolTank bottles and joins Sento against Mad Rouge. How will the riders react to a tird person that can use the evol driver and a second one that can use evolt's forms? will they trust him or not?