The Viper hero. My hero academia x male oc (stopped until season seven)

Going plus ultra

They go through all of the usual training

Nagisa midoriya
Using as many copies as possible and then using his agility and speed to get through the forest this not only improve his time limit and resistance to the pain of using his quirk but also it improves his reflexes and dexterity for moving through rough terrain someday he might be able to use as many copies as he wants

Nagisa races through the forest jumping over roots swinging from branches and jumping from tree to tree having dodge and weave out of the way of whatever's in front of him
Nagisa; damn I did stuff like this with edge but this is harder somehow

He keeps going until he finds himself accidentally jumping off a cliff

Flashback
Aizawa; don't use your wings for this training this is too improve your quirk so just flying over everything won't cut it
Flashback over

Nagisa's eyes narrow before he focuses a trex's strength into his kegs and lands with a shockwave

Nagisa: now that was unexpected

Nagisa finds a new open clearing with a lake and decides to take a break from training his body and will now find new powers in reptile special abilities specifically Dinosaurs what kind of powers where they holding all those years ago that allowed them to rule over this planet

And he stumbles across one dinosaur that may be very helpful in developing a new attack although it may hurt
A lot

A lot later Nagisa is tired and has a killer headache

Kyoka: ugh that was hell

Nagisa: no kidding

Pixie bob: NOW REMEMBER WHAT I SAID WE'RE NOT SERVING YOUR FOOD ANYMORE
Ragdoll: if you guys wanna eat you'll have to make your own meals STARTING WITH CURRY

Nagisa sighs; yes mam
Kyoka: roger that

Nagjsa luckily for him had gone camping quite a few times so he knows how to light a fire

He pulls a lighter out of his pocket and creates the fire and makes his curry

Kirishima: wow dude you came prepared
Nagisa: I sure did, here use it
Kirishima: thanks man

The curry is created and Nagisa scarfs it down

Nagisa: it really is true if your hungry enough anything tastes good
Kirishima: right if I got this at a restaurant I'd send this crap back but after today I'll eat every bite
Mina: wow your scarfing momo
Momo: yes my quirk transforms lipids into brand new atoms to create inorganic material that means the more I eat the more I can make
Sero: like how poop works
Momo gets sad
Kyoka punches Sero: apologise
Sero: Ok I'm sorry
Nagisa: and that's why you shouldn't get her mad you'll regret it

Nagisa notices Izuku wondering off in kota's direction and shakes his head
Nagisa; (the kid has clearly gone through some traumatic stuff and from what Izuku told me it was rough having to go through that but he still shouldn't take it out on us yet he is only a kid a don't know what to think)

The next day

Nagisa is still training and working hard to get the full grasp on his dinosaurs trying to get it to the levels that his normal reptile part has got too but it turns out to be a lot harder then he thought

Nagisa may be able to use three dinosaurs at a time but it comes with the fact that after about 5-10 minutes he cannot move for that time so it's more of a last ditch effort right now of course he's gone beyond that but that was a fluke

Nagisa hears pixie bob talk about them training in the dark

Nagisa: heh sounds perfect I hardly ever get to use my night vision