Toaru Majutsu no Index - Volume 16, Chapter 3: The Duel to the Death between Entirely Different Monsters. Saint_VS_Saint.

The curtains to an epic of a continental power struggle are pulled open. There’s an entire empire in Dane’s heart!

Churches, tribes, prisons, forests, castles, graveyards, abysses . . . He controls the bases of all seven races in the fantasy epic war game, [Heart of Dynasty]; right before his eyes is the throne of a monarch!

Elf rangers pull your bows, the heavy-armoured knights are charging!

The Caesar Empire has collapsed. An era of war for the new ruler arises. The Kingdom sends endless expeditions; the Northern Alliance is unwilling to be excluded; the abyss and death begin to stir as they gaze upon the continent. Plots, tricks, religious wars. . . amidst these battles, only the victor can be called powerful!

Dane, holding a blade dripping with blood, says with bared teeth, “f*ck! Let me use my ass to see whether that seat at the top is comfortable or not!”

- Description from Novelupdates

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.

The young man Ye Tian obtains the ability to copy the talents of others and now fights against the heavens to change his fate.He struggles to survive and protect his sister from the apocalypse of the alien beast invasion.In order to become stronger, he begins to explore the unknown world and gradually reveals the secret behind the invasion of the alien dimensions....Ye Tian: My friend, your ferocious beast, the armored rhinoceros, is pretty good. Can you let me touch it? The proud daughter of a certain heaven nodded in confusion. Ye Tian touched an armored rhinoceros and secretly copied the armored rhino's top defensive talent.Ye Tian: Friend, let’s be friends. Ye Tian stretched out his right hand, shook hands with the somewhat confused genius, and secretly copied the other person's advanced cultivation talent, revealing...

I, a HIKKI-NEET, suddenly reincarnated in another world as a prince, and was immediately deemed the weakest ever, with my life already in a pinch after being abandoned as a baby, being stared down by a huge beast!?

However, I could only use one kind of magic. It was close, but I was able to avoid a “dead end” in my first few days of being born using that magic.

Anyways, I just want to live a lazy shut-in life as an adopted noble with my one all-purpose magic, but…?