Monster Factory - Chapter 42: New product for the old factory

Alex, killed by the God of Darkness, was crushed by his giant sword and woke up to find himself back on the day the 'Universal Descent' game launched!Monsters and gods hadn't began to descend into Earth yet, and so this meant that Alex, along with his 10 years of experience, could now make a difference.But surprise, once he re-enters the world of 'Universal Descent', instead of awakening his normal C-Level talent, he instead awakens the SSS-Level 'Extraction' talent!He could now extract items, talents, attributes and skills from monsters!Ding![You have extracted the Artifact-Level 'Excalibur'!][You have extracted the SSS-Level 'Meteor' Skill!][You have extracted the Artifact-Level 'World Map'!]Now, there was no monster or god in this game that could stop him!

A man is reborn into the world of Avatar: The Last Air Bender as a waterbender from Katara's tribe. Best of all, he was the same age as her, and he had a system with him to help.He knows the future and a system that lets him continuously get stronger by completing quests or long-term missions, as well as giving him the ability to copy abilities from others for himself. He will become invincible in the world of Avatar, even more so than the Avatar himself.

In the vast Marvel universe, where superpower was still slowly growing in its infancy, several peerless superheroes tried to find their path in The Marvel Universe. A young adult named Ron from modern Earth unwittingly stumbles into such a world and begins his journey with an unknown power. This is a magnificent yet unknown true marvel world! This is the story of a normal young adult and his adventures!

- Description from Novelupdates