He is the emperor of elements. It is often that you see sovereign titles when someone is at the top of something.

I am googling "全球塔防。领导黑暗势力征服世界" and nothing related to any novel comes out.

I am afraid to say that this is no nuclear bomb. Besides from how the author described it it shouldn't even have the effect he described. For maximum damage you never want the bomb to hit the ground. The ground will absorb a huge amount of the bomb's energy. What you want to do is detonate it somewhere in the air above the place you want to bomb. How high ? Depends on the bomb. Most of the actual damage come from the shockwave and the heat generated.

Sigh.... Nuclear bombs are way too overrated. The most destructive part of them is the radiation they release. Regarding physical damage ? There are bombs that can be way more destructive with far less cost. If you also consider various fantasy/apocalypse scenarios nuclear bombs become even less desirable. You could say that they might make the situation worse by being a source of mutation.

Did you even read the novel ? Before he was in a small country. Small countries are incomparable to Athena's Champions.

Claus ?

Punctuation. I believe there is a comma missing after "land".

why isn't he using the items Irene gave him ? She literally gave them to him for this reason.

This is a game dude. Not to mention one with the fantasy genre. Most if not all skills are magical in nature. Thus this is no simple igloo.

He has never heard of springs ?

I would like to know if you would incorporate our understanding of the various elements with this world's elements ? For example a flame for us is merely an ionized gas or if it is hot enough plasma. For them a flame is a flame. Something that has varying degrees of hotness. In most cases the flames produced by a mage or an artifact would be magical in nature. Thus they have different rules. For example that soul burning flame probably doesn't need oxygen or operates in any similar way that our flames do. In other words magic in general is usually conceptual. Although it could produce normal matter , most of its effects operate under the corresponding conceptual rules.

Lol. Destiny is really fickle.

This paragraph is quite deceptive. At the start I understood why Leonel might feel this disgust towards the tablet. Even though it is quite ironic given he believes in luck and all lives are equal. He is quite a hypocrite in this though. He believes in luck and that all lives are equal when it is only something good. The moment he sees that a coin has two sides , he forgets his own ideals and convictions. Besides his belief that all lives are equal is already crumbling. The only way to abide to such an ideal is if you hold no one dear or have no purpose or anything of worth in your possession. Ask him whether he would sacrifice Aina to save the dimension Valiant Heart resides in from total annihilation. Or if you would sacrifice the whole dimension and all its residents so he could save Aina. I doubt he would still uphold the ideal of all lives are equal. Lastly the phrase about putting a price tag on people's lives or "freedom" is really pure bs from Leonel. He is obviously trying to change the narrative so his flimsy ideals can be justified. The tablet as it is shown in the following paragraphs needs to pay a price in order to create a body for the souls to inhabit or even revive them if they died. That fact he didn't even bother to spend a second thought before jumping to assumptions greatly disappoints me regarding his progress in maturing and forging a sturdy ideology.

Technology isn't something that can't co-exist with "nature". Everything is a pollutant in the wrong concentrations , even mana. Imagine a normal human from Earth being thrusted suddenly in an atmosphere saturated with mana. He is probably gonna explode. Or an atmosphere filled with death energy/mana and not being an undead.

So far the plot has been pretty bullshit. First, how can Scathatch leave the Land of Darkness and why is she so positive and expressive ? She is supposed to be trapped there and want to die but unable to do so. Also what relationship does the christian god have to do with Alaya ? i.e. Alaya is the god that the saints pray to directly or indirectly in the Nasuverse ( she is "immortal" as long humanity exists). Why didn't Jeane use La Pucelle against Jalter ????

This is actually pretty dumb. First the grail itself can't fulfill a wish. You need to go through the Heavens Feel ritual. Also the Holy Grail is just a name , a figure of speech. It has nothing to do with the church or anything Holy. Moreover the Holy Grail works the same way you said that the so called Black Grail. For example if you wished for humans to never feel sadness ever again , the Holy Grail might just kill every single human (they can't feel sadness if they aren't alive ).

For science thing , in the awakened teacher fight someone uses a hollow ice cube to neutralize a fire spell by depriving oxygen. Also a lot of times in water/ice and earth magic physical matter is required for the spell , so why are element particles needed ? Also lightning magic derived from air magic is also non scientific as gravity magic. Gravity needs mass to actually exist so how are you gonna explain it with science laws (amplifications in the spells are a standard no matter how heavy the opponent already is , meaning that gravity magic doesn't add mass but somehow multiplies the already existing one). Then there is also light/darkness and space magic that has no explanation with science laws (I also heard the time magic might be added in the future , I only heard this as rumor). About Friya after the academy she becomes more like peanut gallery than have an active part and most of her interactions with Lith are kept to a minimum. It reached to a point that for her to be able to be relevant she has to sign away her life which in my opinion is counter productive. How are you gonna be relevant to your family and friends when you sell off your freedom. Lastly I stopped reading at the start of the new Arc where Lith went to the other continent.

A block hole has mass so it can be burned. The problem is the both nps are conceptual. For example La pucelle seems like fire but in reality it doesn't act like one. It destroys whatever the user thinks is harmful. The only thing that should be able to nullify this is Avalon as at that moment Artoria doesn't exist in the dimension with the others. Also another way to negate it is by using a World level defense np like Akhileus Kosmos. Amakusa's Big Crunch should be more than a black hole , i.e. a conceptual level np.

Bad compatibility and plot armor. Should have been able to destroy the black hole/portal. That is why I don't like conceptual powers.