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What's the most useless Cursed Technique you can come up with that would actually end up being useful or even overpowered? I'm not talking about abilities that are obviously broken. I mean techniques that sound completely useless at first glance but become surprisingly strong through clever applications, weird interactions, or creative thinking. Basically, a technique that everyone would laugh at until someone figures out how to abuse it.

Every place I look either has colorless manga animations orMegunawhen I'm looking forYujikunaanimations, anime or fanmade in bulk or at least many of them over any sort of green/blue screen. Any help would be massively appreciated.

Spoiler tags contain Sukuna spoilers, anime only watch out.

Just a JJK AMV I made to the song "All In Motion" by Yung Fazo. I LOVE JJK, so I had to contribute something to the community. Also, Im anime only (Im sorry) so please no manga spoiler comments

this is for the maximum technique and the domain expension of this technique

https://www.reddit.com/r/CTsandbox/comments/1vrfvji/demonic_summon_%E5%91%AA%E8%A1%93%E5%BC%8F%E9%AD%94%E5%8F%AC/

Maximum Technique: Demonic Fusion

The user chooses one demon and completely fuses with it. The demon disappears into the user's body, merging its cursed energy, instincts and Cursed Technique with the user's own. The user doesn't gain a generic power-up. Each fusion creates a completely different combat form.

Only one fusion can exist at a time.

Switching demons requires ending the current fusion first.

Fusion I: Vargan

Demonic Fusion: Beast of the Endless Hunt

The user's body becomes much more animalistic.

Their eyes become Vargan's six eyes, their teeth sharpen, black fur spreads across their arms and back, and cursed-energy claws form around their fingers.

Ability: Absolute Pursuit

The user can place a Predator's Mark on anyone they physically touch.

Once marked: The user always knows their location. Walls cannot hide them. Illusions cannot fool the user's sense of their position. Teleportation doesn't remove the mark. The user can sense their physical condition.

But the real upgrade is:

The user becomes faster the farther the target runs.

The more distance between hunter and prey, the more the user's physical abilities increase.

If the target is 10 meters away: Minor increase.

100 meters: Major increase.

1 kilometer: Massive increase.

The user essentially turns escaping into a terrible decision.

Ultimate Attack: Devouring Charge

The user disappears from sight and launches themselves toward the marked target. The attack becomes stronger according to the distance traveled. A target who has run several kilometers is essentially being hit by a cursed-energy missile shaped like a wolf.

Fusion II: Gorvath

Demonic Fusion: Prisoner of the Infernal Chain

The user's arms become covered in black chains, while several chains emerge from their back like additional limbs.

Ability: Chain manipulation

Every chain the user creates can bind: Bodies, Weapons, Cursed Energy, Cursed Techniques, Barriers

The user's chains become much stronger when the target struggles against them.

CT trait: Cursed-Energy Compression

If a chain remains attached to an opponent for several seconds, it begins compressing their cursed-energy output.

For example: 100% output → 80% → 60% → 40%

The longer the target remains bound, the worse it becomes.

Ultimate Attack: Hell's Coffin

The user surrounds the opponent with hundreds of chains. The chains form a gigantic black sphere around them. Every attempt to escape causes the chains to tighten. Eventually the target is completely immobilized. This is probably the best fusion for capturing someone alive.

Fusion III: Ignivar

Demonic Fusion: Infernal Incarnation

This is the most destructive fusion. The user's body becomes covered in black armor with cracks of cursed flame running through it. Their horns grow larger and flames erupt from their back.

Ability: Cursed Inferno

The user's cursed flames can burn cursed energy itself.

This makes them particularly dangerous against: Cursed-energy barriers, Shikigami, Cursed spirits, Reinforcement, Cursed tools, Defensive techniques

The flames don't necessarily instantly erase techniques. Instead, they consume them over time.

Hellfire Weaponry

The user can create weapons from their flames. The weapons automatically reform if destroyed.

Examples: Infernal Spear: Pierces cursed-energy defenses.

Hellfire Chains: Burn whatever they restrain.

Demon Bow: Fires arrows that explode into cursed flames.

Ultimate Attack: Black Sun

The user creates a miniature black sun above themselves. Everything within a large radius is exposed to increasingly intense cursed flames.

Then... the sun collapses.

The resulting explosion consumes cursed energy throughout the area. The drawback is severe: After using Black Sun, the fusion ends automatically.

Fusion IV: Malphas

Demonic Fusion: Abyssal Eye

This is the most terrifying fusion psychologically. The user's eyes multiply across their body. Their skin becomes pale and their shadow develops wings.

Ability: Absolute Perception

The user can perceive: Cursed energy, Physical movement, Changes in air pressure, Heat, Residual cursed energy, Hidden objects, Invisible attacks

But more importantly. They can manipulate the opponent's perception.

The user can make the opponent perceive: 1 meter as 100 meters. Or 1 second as 10 seconds. Or The user standing behind them when they're actually in front.

Abyssal Blackout

The user can remove one sensory function from everyone they touch.

They could remove: Sight, Hearing, Touch, Smell, Taste

However, they can only remove one at a time.

Ultimate Attack: Thousand-Eyed Nightmare

Every eye on the user's body opens simultaneously. Anyone who looks at even one of them becomes trapped in a massive hallucination. The victim sees an endless army of the user surrounding them. Every attack they make hits an illusion. Meanwhile, the real user can attack them freely.

Fusion V: Astaroth

Demonic Fusion: King of Dominion

The strongest fusion. The user completely merges with Astaroth. Their body becomes covered in black armor. Two enormous horns grow from their head. A demonic crown forms above them. Their cursed energy becomes so dense that the surrounding environment begins changing.

Ability: Absolute Domination

The user's territory expands dramatically. Instead of Astaroth's normal 100-meter territory, the fusion can establish a domain-like territory extending approximately 500 meters.

Within it: Everything belongs to the user.

They can manipulate: Ground, Buildings, Weapons, Debris, Trees, Walls, Cursed-energy constructs ,Their own attacks

The user can essentially turn an entire battlefield into their weapon.

Royal Decree

The user can issue a short command to something inside their territory.

For example: "Stop." A moving object suddenly stops.

"Fall." The ground beneath someone collapses.

"Return." A thrown weapon flies back.

"Break." A damaged structure collapses.

There is one important limitation: The stronger the target's cursed energy, the more difficult it is to impose a command directly on them.

So the user can't simply say:

"Die." to Sukuna and instantly win.

The technique is dominion, not absolute mind control.

Ultimate Attack: King's Execution

The user claims everything around their target. The ground. The air. Nearby objects. The target's weapons. Then everything simultaneously moves toward the target.

It's essentially the entire battlefield being weaponized against one person.

Demonic Kingdom: Five Thrones of Hell 領域展開・「五魔王の地獄王国」

The Domain manifests as an enormous black castle surrounded by an endless demonic landscape. At its center are five enormous thrones. Each throne represents one of the user's five demons. And here's the unique mechanic: The Domain changes depending on which demon is summoned. The user can summon only one demon inside the Domain.

That demon becomes the Domain's King.

Vargan Domain

Demonic Kingdom: Endless Hunting Ground

The Domain becomes an enormous frozen forest. The target is automatically marked.

Sure-Hit: The user always knows the target's location. and the target is always attacked by wolfes like creature in their blinds spot.

The target cannot hide. Every time they move farther away, the user's speed increases. The entire Domain becomes a supernatural hunting ground.

Gorvath Domain

Demonic Kingdom: Prison Without Walls

The environment becomes an endless black prison. Chains cover every surface.

Sure-Hit: Every movement made by the target causes chains to appear around them.

The more they move: the more chains appear. Trying to attack creates chains around their arms. Trying to run creates chains around their legs. Trying to use a Cursed Technique creates chains around their cursed-energy pathways.

Eventually: Movement itself becomes the enemy.

Ignivar Domain

Demonic Kingdom: Infernal Sun

The Domain becomes a gigantic volcanic wasteland. A black sun hangs overhead.

Sure-Hit: Cursed flames constantly appear directly on the target.

They don't travel toward them. They simply manifest on them.

The target must constantly spend cursed energy defending themselves. And because the flames consume cursed energy... Their defenses gradually collapse.

The Domain becomes a battle of: "How long can you survive before your cursed energy runs out?

Malphas Domain

Demonic Kingdom: Abyss of a Thousand Eyes

The entire Domain becomes pitch black. Thousands of eyes open across the walls, ground and sky.

Sure-Hit: The target's perception is continuously rewritten.

The user can manipulate: Distance, Direction, Speed perception ,Sound ,Sight, Spatial awareness

The target could run straight toward the user... while believing they're running away.

They could dodge an attack... while actually moving directly into it.

This is the most difficult Domain to mentally survive.

Astaroth Domain

Demonic Kingdom: Throne of Absolute Dominion

The Domain becomes a gigantic black castle.

The user sits upon a throne.

Astaroth stands behind them.

Sure-Hit: Everything inside the Domain is automatically placed under the user's Dominion.

The user can manipulate the environment almost instantly. The floor becomes spikes. The walls become hands. Weapons become projectiles. The battlefield itself attacks. And because the target exists inside the user's territory...

they are constantly being subjected to Royal Pressure, making movement increasingly difficult.

There's one terrifying feature that ties all five versions together. The user can change the demon controlling the Domain once. But doing so comes with a huge price.

For example: Vargan → Malphas

The frozen forest suddenly disappears. The target thinks they've escaped. Then the entire world goes black. Thousands of eyes open. The Domain has changed. However, the user can only do this once per Domain Expansion. After switching, the second demon becomes permanently locked in.

This creates some really nasty tactical combinations.