What if Izuku has The Millennium Items

USJ part 2 and the mind of the Tomura Shigaraki.

Izuku was standing face to face with Shigaraki, Kurogiri, and the Nomu.

Izuku: I see you have a monster of your own.

Shigaraki: This is no regular monster, the Nomu was made to kill All Might.

Izuku: If that's the case, then let's test it in a battle against my monsters.

Izuku then let Yami Izuku take over.

Yami Izuku then pulls out his cards and places 3 face-down cards and plays Feral Imp, Shadow Ghoul, and Black Luster Soldier.

Shigaraki: So you would fight me, All right Kurogiri get rid of them.

Kurogiri: Yes young master.

Kurogiri then tried to attack Yami Izuku, but then he stopped.

Shigaraki: Kurogiri, what are you doing? Attack him.

Kurogiri: I can't it's almost like I'm being held by something.

Yami Izuku: Because you are, you activated my trap card the Spellbinding Circle.

Shigaraki: A trap!?

Yami Izuku: And now I attack Kurogiri with Feral Imp, and Nomu with Black Luster Soldier.

Feral imp then attacked Kurogiri and knocked him out, and Black Luster Soldier attacked Nomu.

Yami Izuku: And while I'm at it I activate the spell card Brain Control and use it on your Nomu.

Shigaraki: What!?

After a fierce battle, Yami Izuku managed to beat the villains.

Shigaraki: You cheater, I'll end you.

Before Shigaraki could attack he was stopped by glowing swords.

Shigaraki: What is this?

Yami Izuku: My other face-down card, The Swords of Revealing Light.

The heroes then burst in and saw Yami Izuku keeping the villains at bay.

Izuku: Yami, the heroes are here, and yet I feel something in Shigaraki almost like he's in pain.

Yami Izuku: I also feel something in Kurogiri, like his memories are being suppressed.

Izuku: Then let's use the Millennium Key to help them, I'll deal with Shigaraki, while you deal with Kurogiri.

Yami Izuku: Good idea.

Yami Izuku then took out the Millennium Key and held it in front of the 2 villains and turned it.

We now see Izuku walking down a dark hallway.

Izuku: So this is Shigaraki's mind, but where is he?

???: You brat!

Izuku turned to the voice and saw a door and it opened.

Izuku then saw a boy with Black hair and scratch marks on his neck.

Izuku: That's Tomura as a kid, then that must be his dad.

???: You brat, you dare bring that photo out and show it.

Izuku looked at the photo and saw the previous user of OFA, Nana Shimura.

Izuku: Why does he have this?

???: I just want to see what grandma was like.

Izuku: Grandma?!, Then that means he's really Tenko Shimura.

A bright light flashed and Izuku found himself outside and saw Tenko hugging his dog only to see it decay.

Izuku: This must be when his quirk activated.

Izuku then saw how Tenko's quirk killed the entire family, and he was horrified and felt sad for the poor boy.

Izuku: So this is how he keeps you in your place, he makes you relive the worst moments of your life and then uses the memory of him saving you from the streets when no one came to help.

???: It wasn't just that.

Izuku looked behind him and saw Shigaraki crying.

Shigaraki: I thought that All Might would come for me, but he didn't, he probably didn't even bother to look for me.

Izuku: But he did.

Izuku then changed the surroundings with the Millennium Key to show All Might saving civilians, and after he was out of sight, he was looking for something.

Shigaraki: What is he looking for?

Izuku: It's not "what" he's looking for, it's "who", he was looking for you. Every time he wasn't there to save civilians he was looking for you because the day that Nana died he promised to find you.

Shigaraki looked at the scene with tears in his eyes and then hugged Izuku.

Izuku: It's okay now, I'm here.

The two hugged each other.

To be continued...

I bet you didn't see this ending in a cliffhanger, but I'm saving the actual final part for next time since I also want to cover Yami in Kurogirir's Mind, but that will have to wait, until next time.