In recent years, My Hero Academia has become very popular, and the anime's 6th season has so far been a huge success. The war between the Pro Heroes and Paranormal Liberation Front featured a great deal of action, and it cemented Tomura Shigaraki as the series' main antagonist. His power has grown significantly, but his greatest weapon is still his Decay Quirk.
Thanks to Decay, Tomura can disintegrate anything he touches, and now that his Quirk has become more powerful, he can wipe out large sections of a city. This ability is extremely deadly, and under normal circumstances, the best way to survive its effects is to simply avoid Tomura. That being said, there are actually a few anime characters who can counter Decay and take Tomura on without fear.
8 Obito Can Avoid It With His Kamui – Naruto
In Naruto, Obito awakened his Mangekyo Sharingan when he witnessed Rin's death. When this happened, he instantly gained access to a rare and overpowered ability called, Kamui. This space-time ninjutsu gives Obito access to his own dimension, and he can transport items and people through it.
In battle, Obito could apply this ability to his own body by transferring body parts to the Kamui dimension before his enemy can hit him. This is a form of intangibility, and since Tomura's Quirk relies on physical contact, his hands would simply pass through Obito's body.
7 Shota Aizawa Can Negate Any Quirk With Erasure – My Hero Academia
Shota Aizawa is one of the more effective Pro Heroes in My Hero Academia because his Quirk turns people back into ordinary humans. Erasure allows him to deactivate another person's Quirk, thereby nullifying their powers.
This power comes from Shota's eyes, and the main issue is that he needs to keep them open to keep Erasure active. He cannot even blink. During the war in Season 6, Tomura had Decay nullified for a prolonged period of time, and he intentionally targeted Shota in order to get his Quirk back.
6 Kid Buu Has Incredible Regeneration – Dragon Ball Z
Kid Buu appears in just one Dragon Ball arc, but he took both Goku and Vegeta to their limits. Tomura has gained immense power now that he has been given the All For One Quirk, but none of that matters against someone like Buu, who can literally blow up the planet with one attack.
Even if Tomura wanted to use Decay on Buu, it will not kill him because he possesses incredible regeneration. If even a single cell survives, Buu will be able to completely regenerate. If Tomura were to touch him, all Buu has to do is tear off that piece of his body and grow it back.
5 Ryuk Cannot Be Killed Or Injured – Death Note
When Ryuk "dropped" his Death Note in the human world, he did not expect to meet someone as interesting as Light Yagami, who did a lot of terrible things in order to create an ideal world. Ryuk is a Shinigami, and like other members of his kind, he can extend his lifespan by killing humans with his notebook.
As long as Ryuk keeps using his Death Note, he is immortal. Not only can he not be killed by earthly means, but he also cannot be injured either. This would include Tomura's Quirk. The only way Ryuk can be stopped is if he uses the Death Note to save a human's life.
4 Fushi Is A True Immortal With Rapid Regeneration – To Your Eternity
It is true that the To Your Eternity manga does several things better than the anime, but it is still a great series that is faithful to its source material. The story focuses on Fushi, an immortal being who was created to help preserve Earth.
He may look Human, but Fushi's true form is that of an inert white orb. Thanks to his rapid regeneration, he can quickly heal any injury, no matter how gruesome or deadly it is. Even if Tomura were to repeatedly use Decay on Fushi, he would never be able to kill him.
3 Decay Cannot Beat Ban's Immortality – Seven Deadly Sins
In Seven Deadly Sins, Ban was known as the Fox's Sin of Greed, which makes sense since he was a thief before becoming a Holy Knight. He found the mythical Fountain of Youth, and he drank the entire thing to defeat a demon.
In doing so, Ban gained immortality, to the point that he even stopped aging. Decay would still disintegrate Ban, but he would just come back to life, and there would not be any permanent damage. This power allowed Ban to come back to life even after his body was completely destroyed by a powerful demon.
2 Kizaru Is Untouchable With The Glint-Glint Fruit – One Piece
As an Admiral, Kizaru is one of the strongest characters in One Piece, and he possesses a very effective Devil Fruit. The Glint-Glint Fruit is a Logia that allows him to create and transform into light. He can pierce his enemies with lasers, and he can create powerful explosions.
Like other Logia users, this Fruit makes Kizaru's body intangible, which means that if Tomura tries touching him, his hand will simply pass through his body. Kizaru can also move at the speed of light, so Tomura may never be able to reach him.
1 Tomura Would Never Be Able To Touch Barragan – Bleach
In Bleach, each Espada represented an aspect of death, and Barragan represented old age. He can project a time dilation field around him, which means that Tomura would move much slower if he gets close to him. This would allow him to avoid Tomura's hands.
If Baraggan releases his zanpakuto, anything around him will start to rapidly age until it turns to dust. This would mean that Tomura would not be able to get close to him without dying. Decay would not affect him from afar either because his power would have caused everything around him to decay first.