If Tomura Shigaraki had a Domain Expansion, what would it be called? (Make the name have to do with either, Decay, All For One, Or his goal to destroy everything)

If Tomura Shigaraki had a Domain Expansion based on his theme of decay, All For One, and his goal to destroy everything, it could be called "Decay's Final Extinction: All For None."

Any other names?

Certainly! Here are a few more options for a Tomura Shigaraki Domain Expansion:

1. "Eternal Decay: All Crumbling Desolation"
2. "Annihilation's Embrace: All For Oblivion"
3. "Decay's Reign: All For Ruin"
4. "Destruction's Dominion: All's Decay"
5. "Omnicidal End: All For Annihilation"
6. "Ravage's Conquest: All Shall Wither"

Feel free to mix and match words or concepts to create your own unique name as well!

If Izuku Midoriya had a Domain Expansion, what would it be called? (Make the name have to do with either, One For All Or His Goal To Become the number 1 hero)

If Izuku Midoriya had a Domain Expansion based on his Quirk One For All and his goal to become the number 1 hero, it could be called "Infinite Ascension: One For Victory."

Any other names? (Also just make it have to do with One For All)

Certainly! Here are some more options for an Izuku Midoriya Domain Expansion focused on One For All:

1. "Unyielding Dominion: One For Supremacy"
2. "Heroic Eruption: One For Greatness"
3. "Limitless Convergence: One For Triumph"
4. "Power's Apex: One For Ascendance"
5. "United Radiance: One For Heroism"
6. "Indomitable Vanguard: One For Excellence"
7. "Boundless Pinnacle: One For Legendary"

Feel free to mix and match words or ideas to create your own unique name that resonates with Izuku Midoriya's journey with One For All!

How would shigaraki’s Domain work?

Considering Shigaraki's theme of decay, his Domain Expansion would likely manifest as a vast and desolate landscape, completely overtaken by decay. His Domain would have the ability to rapidly accelerate decay on a massive scale, affecting everything within its boundaries.

Within the Domain, buildings, structures, and even living organisms would crumble and rot rapidly. The ground would crack and decay, spreading throughout the surroundings. Any attacks or energy directed towards Shigaraki would be absorbed by the Domain, only fueling its power and expanding its reach.

Shigaraki himself would gain enhanced control over his Decay Quirk within the Domain Expansion, allowing him to effortlessly disintegrate anything he touches or directs his Quirk towards. The decay could spread much further and at an accelerated rate compared to his usual abilities, rendering opponents practically helpless unless they can find a way to escape the Domain's influence.

To escape the Domain Expansion, opponents would need to either overpower Shigaraki or find a way to disrupt the flow and control of decay within the boundaries. Otherwise, they risk falling victim to an unstoppable wave of decay, with no option but to succumb to Shigaraki's destructive power.