Fixten

In a world where summoners wield the power to call forth vampires, elves, angels, demons, and all humanoid creatures from across the realms, Nathan found himself unable to summon beings except from beasts. 

However, those beasts are not ordinary beasts. They are divine beings who once stood at the same level, if not higher, than the legendary creatures the world ever knew. 

Casting his gaze to the left, Nathan sees numerous summoners accompanied by the likes of demon kings, archangels, vampire progenitors, and other legendary beings. Turning to the right, a massive army of alien symbiotes is waiting to attack. 

There was no fear in his eyes, because standing on his left is a majestic wolf who managed to kill a god, the legendary eight-headed serpent coils on his right, above him is the bird who is glowing like the sun, and behind him is a dragon that once gnawed the roots of the world tree. 

“Let the war begin.”

Summoners War: Only I Summoned Divine Beasts

''…" Nathan fell silent. "So, even with your herb, it's not possible to do it now?"

She shook her head. "No. The gap is too far. Just imagine swallowing 12 mature class cores at once. That's usually the safe number. We have been using it most of the time. Even if you are going to push it to the limit, it will be 10 cores.

"Just like the first time you swallowed a mature class core, your limit was 10 cores back then, which caused all that hellish pain.

"Then again, you could actually pass out. It's not like your body will cease its function if you pass out. Besides, if the ena veins are big enough, it will be able to contain the ena whether you're conscious or not."

Nathan looked down, feeling a bit disappointed. It appeared he had no other choice but to absorb only the mature class cores.

No. It should be fine. This was his limit, and it wasn't like he had to consume a large number of cores either way.

Test (Bonus)