The best warrior never known

Once upon a time, a great warrior with a humble soul, wanted to become even better. He wanted to rule and protect all the 4 realms, but soon enough, he would realize it was not possible for one men to do such a task, unless other factors came into consideration. Many warriors have swords and knives as weapons, but here we have our warrior using a power that's being drawn from entities beyond our comprehension. That entity gave our warrior many abilities, but one of them shined upon them all. He was capable of doing something that could only be described as magic, he was capable of creating portals across many dimensions and realities, many of which he could not understand yet, but he knew that power would be useless unless he could understand it properly. And just like that, the journey to reach knowledge started for our warrior. He had countless nights without sleeping just to understand some simple spells, so imagining what he had to do to conjure multi-dimensional bridges, gives you an undesirable headache. The time passed and our warrior became wiser and more powerful, capable of harnessing the power that was given to him, and the time to prove that he was Worthy enough to wield it arrived, he had to fight with such a creature, that in case of failure it would mean the destruction of all things known to him. The battle began, and somehow he managed to avoid the punches provided by this flying monstrous looking creature. After some minutes of battle, he realized magic wasn't going to be enough to defeat such a creature, it had to come back to its home, and just like that our hero realized that he didn't have to destroy it, he had to send it somewhere else, but where? In order to get an answer, our warrior tried some mental spells to get into his memory, just to realize that it was as empty as a vacuum chamber, but after he performed his spell, another creature came by just to tell him that what he wants to protect is already being destroyed. Despite all his efforts, our hero came to the conclusion that sometimes you need to negotiate to win a war, and it turns out that those entities didn't want to rule and emerge destruction upon the 4 realms, but they wanted to eat humans because of their high nutritional value. And so our magical warrior realized that sending them somewhere else with many beings to eat was a perfect solution, and it would have worked if it wasn't for the fact that they already made it to earth, and just like that our hero started talking to the main entity and offered his soul, knowledge and magical powers only if he sent those monsters somewhere else, and so it happened. And now our great warrior is left with no magic, no understanding of what happened, but he remains happy, because he sacrificed everything just to see humanity grow, and more importantly, to be the greatest warrior that walked upon the 4 realms