Did people just forget that it’s been spelled out, literally by Dwight himself, that the Will of the World creates ass-pulls just to oppose him because of how insanely unnatural Dwight’s attempt at world peace is to how the Will wants things to work?
Like the mid-battle power up of Heroes, and even bringing in an isekai Hero with the Will filling in the blanks of engineering schematics so that they would actually work, have been in this manga since the beginning.
The other antagonists didn't have plot elements that felt incongruous to previously established facts in the story, is my personal problem with this.
Dwight was the sage sent with the hero. He was then able to become a lich with his knowledge of magic. That's a big deal. For them to suddenly introduce someone who knows things about magic he doesn't, makes me assume that we were either lied to about Dwight's ability, or that The Will (or just the writer) is now actively making Dwight lose abilities he should already have had- saying he's just forgotten or didn't know things rings hollow when it was established that he had been a sage on par with the hero.
Also, any magic-user who could have been on par with Dwight should have been one of the first people The Will empowered, but first we got heroes from this world, which should have included this guy, then we got an Isekai hero,
and only after that did The Will go for this guy who was a magic user even stronger than Dwight, who knows how to be invisible to everybody and has access to monster juice. This guy is an obvious solution and the first or second thing it should have tried. He should have been introduced earlier. If the Will really didn't want the balance of power disrupted, it would have gone for importing things (like the isekai guy) to stop Dwight only after it had used up resources already at its disposal, to keep the cure from becoming worse than the disease. The venn diagram of "Resources already at its disposal" and "this new jerk" overlap completely. The isekai guy should have been one of the last threats Dwight faced.
And finally, i think that his design just plain looks completely out of place in general. This is subjective, but it's something noted by other people in this thread.
Establishing a reason for God to hate the hero isn't enough to make up for writing that showcases a lack of foresight. It feels like the writer just didn't think of this arc at all until now, and changed parts of Dwight's backstory and established abilities to fit the new antagonist into the story. To use a metaphor, those are load bearing story elements, and I don't trust the writer enough to keep this story from collapsing.
