Review Notes:
Arguable reader: While you are right that the Miraculous do provide massive power boosts, my main thought is about when that power becomes available to him. Without saying too much, we've already seen that some Miraculous are possessed by people that don't show up for a long time. As well as that, those people are capable of using the Miraculous. Plus there are definitely fics out there with Izuku's that have that kind of power from the very start. I hope that addresses your concerns.
TheBeatles211: To start, I based who had the Miraculous off of a few things. Nezu's was because of how much it benefits him, plus well, he is at least partly mouse. All Might's came from the similar powers, along with the Tiger's concept being exaltation (extreme happiness), which I think matches the type of hero All Might is.
For Nezu's placement of the Ladybug, I knew it would basically break the plot if it was in anyone's possession (its power is the embodiment of plot armour) and I felt like it was a reasonable precaution to take.
I hadn't actually thought about the Native American box, but it might come up in the future.
As for the Nezu thing, it isn't that obvious unless you have the answer on your mind, but there will be some more clues very soon.
I don't mind the long reviews, though if you want to mention anything specific than it may be easy to do PMs.
"Voyage!" Bakugou's attack passed through empty space, shattering the back wall and dispersing into the street. He whirled around in time to avoid the horseshoe that Izuku threw at him. "Sorry Kachaan, it was a good fight."
"The hell do you-"
"Bakugou, we have an issue-" Ilda's voice came through the headset, sounding significantly out of breath.
"Figure it out yourself four eyes!"
A few minutes earlier, Ilda found himself darting through the corridors, his eye's scanning for any sign of his opponents. Upon reaching the third floor, he caught sight of a head of brown hair. Uraraka ducked into a nearby room, her armour-clad classmate following.
By the time Ilda had turned the sharp corner, Uraraka was a ways down the hallway that followed the door. The first thing to catch Ilda's eye was the stacks of furniture. The items were scattered throughout the hallway, the largest pile of which covered a door at the end.
"I've got you now, evildoer! You shall not escape punishment!"
...
...
...
Uraraka stopped running, then burst out laughing, leaning on her knees as she occasionally glanced towards her now perplexed opponent. "You're really into this aren't you Ilda."
"I will not let your tricks deceive me, villain!" Ilda charged towards his classmate, his right leg coming up in a roundhouse kick. Uraraka jumped back, throwing two desks towards Ilda in the process.
Ilda continued to push forwards, his flurry of blows eventually forcing Ochako to the end of the hallway. The blue haired boy's assault was reversed as Uraraka lunged to the pile blocking the door, throwing the entire stack towards Ilda.
Unfortunately for Uraraka, Ilda reacted with haste, sliding under the weightless attack. Taking advantage of the unprotected door, Ilda swerved round Ochako, his engines carrying him to the bomb room.
With a shout of effort, and a shoulder charge, the door swung open revealing... "There's nothing here."
"Got ya!" The debris from earlier crashed into the doorway, blocking the only exit to the blank room.
"Bakugou" Ilda spoke into his earpiece: "We have an issue-"
"Figure it out yourself four eyes!"
"I'm trapped and Uraraka is likely on route to your location." Silence was all that met Ilda's ears, Bakugou must have disabled his communicator.
"TWO MINUTES REMAIN!" Their teachers voice blared through the earpiece, Ilda would have to think of something, and fast. His eyes found the window on the opposite side of the room, perhaps if he could run along the wall...
Before he could act on his plan, a massive explosion rocked the building, similar to the one he had felt only minutes prior. The blast was followed by a familiar screaming of: "Where are you, DEKU! Stop hiding from me!"
Ilda had expected many things to follow Bakugou's signature screaming, not one of those included the boy appearing from one of Midoriya's portals, and crashing headfirst into him. "What the hell! Where did you come from four eyes!"
"Please stop referring to me in such a disrespectful way. It seems Midoriya used your speed to cause you to stumble into a portal."
"I didn't ask four eyes!"
"You just said-"
The inevitable argument was interrupted by a familiar laughing from behind the barricade: "Even when you should be strategising you're arguing. I suppose now is the perfect time to reveal my evil plot." Ilda personally thought his acting was better, especially as it didn't have random giggles mixed in. "The bomb has been on the opposite side of UA for the entire round."
"What! How the hell is that in the rules!?"
"All Might never said anything about boundaries."
"Damn you round face!"
The four teenagers entered the observation room, two looked ecstatic, one looked ashamed, and the last was fuming with rage. "You all did excellent back there!" All Might called out, only serving to fuel Bakugou's irritation. "Young Ilda. Your entrance to the trap room was incredibly effective, however you failed to consider a trap. If you do so in the future, I have no doubt of your success!"
"Thank you sensei."
"Young Uraraka. You perfectly lured Ilda into the trap, while still appearing to be protecting the room. Keep that up, and you'll have villains exactly where you want them." Enthusiastic nods follows All Might's every word.
"Young Bakugou. You were easily distracted by Midoriya, fell for his portal trap, and disobeyed my order not to fire your weapon. While your combat prowess is beyond any of your peers, that does not excuse your actions. I expect better in the future."
"Yeah, whatever." The blonde's tone was apathetic, but the rage that dwelled under was as obvious as ever.
"Young Midoriya. Your plan was excellent, and you executed it well. However, try and consider less moving parts next time, and your victory will be more likely."
"Yes sir!"
"Alright! Time for the next match!"
"Most concerning." A Mini-Nezu spoke from atop Aizawa's shoulder, the two staring down at the ash that rested where the UA barrier once stood. "This certainly wasn't the work of a member of the press."
"It's a declaration of war."
"It seems so. Go with your class to their rescue training tomorrow, I'll get Snipe to help with Vlad's class."
The two heroes thoughts were interrupted as Mic ran up to them, a tablet in his hands: "I found them on local cameras." He held it up to the two, displaying two figures within an alley.
One was dressed in a simple black hoodie, while the other wore a formal black and white suit. The hooded one held something with four fingers, though the light made it impossible to make out. He paused his walking, and turned to the camera, holding up a piece of paper from his other hand.
Upon the paper was a logo rather familiar to Nezu, that of a group he had eradicated long ago. It wasn't them but clearly whoever this was new it would be an effective taunt towards the principal.
"You there, assistant, hand me that scalpel." The man dressed in white loomed over the table, blade growing ever closer to the observer's eye. "Truly incredible. That such a realistic live-form could be made from a piece of jewellery." Their silver ring glinted in the white lights of the medical room, which was soon filled with the screaming of a familiar voice.
"Nezu! NEZU!" Aizawa's voice broke him from his stupor and returned him to reality.
"Apologies, I was distracted." The look he got from Aizawa was one that saw right through his lie, though Mic seemed to remain oblivious.
"Is that paper what I think it is."
"Yes, it is no more than a taunt, they must have dug something up from an old database, I'll do another search for anything related."
"Um. I feel like I'm missing something here."
"It's nothing Mic, go back to your class."
His two employees left, leaving the principal with rather unpleasant memories, the worst of all being four simple words:
"Duusu, spread my feathers."
While the entrance exam was a mix of many different emotions, this bus journey had been rather different. The class had been informed they were doing field work within a special facility, hence the immense amount of excitement that Izuku's Miraculous poured into him.
He sat between Uraraka and a disappointed Ilda, who had been taking his role as class president a bit to seriously, much to Uraraka's amusement. "Midoriya, surely you must agree that it was wise of me to arrange an organised setting plan, it would have made entry into the vehicle far easier. Well, at least if the bus was formatted in the way I expected."
"I kind of have to agree with Uraraka on this one, Ilda. It kinda was your fault for not checking the bus."
"Ha! See, I'm right!"
"B-but strategic layouts always make things easier. If you look at this data I have here-"
"Why did you bring graphs to a heroics class?"
The teens' conversation was cut off as the bus abruptly stopped, Aizawa's dull voice addressing them: "We're here, everyone off." The class stepped off the bus, looking up to the giant glass and steel dome that stood before them.
"Hello everyone! Welcome to the USJ!"