VS events are basically what would happen if League was a high fantasy
It all fits. Overpowered singular characters, wars between light and darkness, gods, miracles and so on.
For those unaware, here's a simple explanation to what high/mid/low fantasy actually stands for, as explained by Anonymous couple years ago on my favorite Korean basket weaving forum.
Low fantasy - An army fights a dragon. Thousands die. There are multiple war machines involved. Mid fantasy - A band of adventurers fights a dragon. Hit&run tactics are involved. About half of them die. High fantasy - Single mighty warrior wielding a legendary Sword of Oomph fights a dragon. Dragon dies on the spot. Low effort isekai anime - Bland MC fights a dragon. Dragon turns into a cute girl and joins MC's harem.