Gains

There was a reason he asked for Blackheart.

Blackheart is not a power but a person, a villain the authors in MCU conjured for their convenience.

They made him OP enough to qualify as a worthy villain and in the end, they made a monster, who in my opinion had the best in terms of physique without totally stopping being human.

And being a villain, he held very little fate value. That's why it was easier to get Blackheart as an ability than Deadpool or Daredevil.

[Blackheart:: Power drawn from misdeeds. The more negative the world is the stronger the physique. Originates from the MCU and is a physique-based power.

[Superhuman Strength: Can lift 100+ tons with the physical body alone.]

[Superhuman Speed: Can at extreme speeds compared to the finest human athlete with the physical body alone.]

[Superhuman Durability: The tissues of the body are considerably tougher and more resistant to injury than the tissues of a human being and the body is virtually invulnerable to conventional injury. The body is capable of withstanding great impact forces, high caliber bullets, exposure to temperature and pressure extremes, and powerful energy blasts without sustaining injury]

[[Telepathy], [Levitation], [Teleportation]:: Utility abilities for daily use. You can carry out interdimensional teleportation with the physical body alone.]

[[Size Alteration], [Physical Alteration]:: You can alter the size and physical form of your body at will.]

[Regenerative Healing:: A unique physiology with mystical energies that enable the body to rapidly recover from any form of injury at a sub-molecular level. The body is capable of regenerating almost any damaged or destroyed tissue, even missing limbs.

[Energy Generation:: The body can generate various forms of energies for different desired purposes.]

[[Soul Capturing], [Mind Control]: You can capture a soul against the will of the person and control millions of minds at once.]

[Immortality:: The body is functionally immortal, immune to the effects of aging, and is immune to all known Earthly diseases and infections. It is also beyond the need for food, water, or oxygen.]

[Penance Immunity:: Negative debuff and Punishment-type skills and spells don't affect the body, on the contrary, they make the body stronger, due to the power of misdeeds which is the body's source of power.]

[High Intelligence:: The body possesses high intelligence that makes you near-omniscient.]

]

This is what I got after some edits. Most of these abilities may look overpowered now, but they had pretty sick limiters before the edit.

And the guys in MCU are equally broken. Compared to some other characters, I'd say Blackheart could only rank in the lower upper class if not the Upper middle class.

The Blackheart physique had many advantages, one of which is that it generated its own energies. It did not matter what type of energy it was, the body could generate it.

There are some worlds that he was going to visit, where they had different systems and it'd be an advantage over others.

Some worlds did not even have these energies. If he decides to visit a Zombie Apocalypse world, then that'll be a big plus.

The body was also a powerhouse by itself. A plain punch could exert up to 100 tons. And it fed on negative energy to grow. Which world did not have it.

Even the Pure Pure worlds had them. And if he somehow found himself in a unicorn world, a simple edit would do the trick.

He was also technically a Demon now but his race had not changed. Blackheart was just a passive skill now and had no influence on his core construct. It was more accurate to say that he was now a Demonic Human.

There was the [Menu] he had copied from Satou. It copied everything.

[Menu:: A HUD used to digitize the host's power and make it easy to level up.]

It came with a lot of useless and complicated stuff so Yuuya decided to combine it with the HUD he got from the [Door to Another World].

The end result was a less complicated HUD but he kept the mechanisms he desired and edited out those that he did not.

His new HUD looked like this;

[[INFO]

Name:: Tenjou Yuuya

Level:: 250/+99

Race:: Human/Demon

Occupation:: Prince of Hell

Stats::

Magic: +99

Attack: +99

Defense: +99

Agility: +99

Intelligence: +99

Luck: +99

Bonus Points: 0

Skill Points: 0

[INFO], [MAP], [UNIT ARRANGEMENT], [STORAGE], [ALTERNATE], [LOG], [SETTING].

[STATUS], [EQUIPMENT], [MAGIC], [SKILL]]

It got more complicated and it now looked like those generic RPG HUDs with a thick retro vibe but that did not disturb him much.

The things he kept from the previous HUD were few and now he had the [Bonus Points] and [Skill Points].

The [Bonus Points] did not change their functions and were used to raise his main stats while the [Skill Points] were used to raise his skills.

The way to get [Skill Points] and [Bonus Points] remained the same. Every creature he killed would give him [Skill Points] depending on how powerful they were, while he would get [Bonus Points] every time he leveled up.

Unlike the previous time when he had to practice or use a skill repeatedly to level up, now he just had to have enough skill points and he could evolve a skill to Tier 0.

And that was not the most broken thing about the [Menu]. The most broken thing was how easy it was to learn said skills and earn titles.

Hell, he had just finished his modifications and he learned the [Divine Tool Creation Skill]. If he became powerful enough in the future, it would be easy for him to create a system of his own.

He also got all those titles, drops, and skills Satou got from that crazy meteor shower stunt.

His stats had also changed. He had gained 3100 to all his stats making them 73100 but the development of the [Menu] was like this.

Once numbers exceed 99, it would be a miracle if he ever saw them again. Even the level meter was a forced entry.

But it was worth it. With these new changes, every small move of his gained him a title, and every method, technique, spell, or skill he saw would be learned automatically.

This was a win in his book.

[…]