No one pov
Both 1A and All Might were shocked that The Mimic is none other than Izuku, the one who they killed a few months ago
Izumi:*crying*Oni-chan.
Mimic:*disorted voice*You have no right to cry, Izumi. Because of you and you'r friends I'm like this. I told you before I die that I'll have my revenge. I told you that my body was destroyed, but my soul will be restless. I swore Vengeance and I vowed to take it.
Katsuki charged at Mimic
Katsuki:DEKU, YOU BASTARD! YOU SHOULD HAVE STAYED DEAD!
The Mimic pointed his hands towards Katsuki and bullets were shooted at Katsuki shoulders and knees
Katsuki falled on on the ground, bleeding from the wounds
Mimic then pressed his foot on Katsuki chest, applying pressure making Katsuki to scream in pain
Mimic:*disorted voice*Hurt, doesn't? That's how I felt when you bully and the killed me.
Mimic the grabbed Katsuki arms and begin to pulled
Because of the bullet wounds, Katsuki couldn't fight back
All Might charge to stop Mimic from harming Katsuki more
But All Might was blown away by a sonic scream
Mimic:*disorted voice*No interference. Now, let's resume.
Mimic pulled Katsuki arms until
*SNAP*
Mimic ripped Katsuki arms
Then he throw them in the air where he get his flamethrower gear and burned Katsuki arms to make sure they can't be put back
All were stopped by that
Katsuki was laying on the ground
Blood pouring from his shoulders and knees
AM:WHAT HAVE YOU DONE!?
Izumi:Oni-chan, he's you'r friend.
Mimic:*disorted voice*Under what circumstances he's my friend. None of you are my friends. You stopped being my friends the day I turned 4. The only thing I'll enjoy about is when I'll take you'r Remnant.
All Might charged at Mimic, but he was send back because of the wave of fire from Mimic flamethrower gear
Mimic:*Katsuki voice*You're a fool, All Might. You're simply just a human, not a God. *Izumi voice*Nothing you do will stop. You may destroy my body, but my soul is restless. I'll find a new host to have my revenge. And I'll tear apart all of you who turned me like this. *Shoto voice*It will be you who*Shoka voice*is left behind to rot. *Shoto voice*And when I render you*Shoka voice*broken and obsolete. *Shoto voice*You'll lay lifeless and broken in the ashes of rotten and deranged memories. *Shoka voice*While I agonized my wrath will rend this world apart.
Author note
After Izuku soul possessed The Mimic, he made upgrades to his body
From his palm he can shoot bullets and fire
He can also hack into any device
He's soundproof, waterproof, fireproof and electric proof