This mod adds new mobs to the game that have a chance to spawn when placing a torch in the overground part of your world. These are fiery monsters that will be able to burn everything in their path, so you should be extremely careful with these friends.
Wildfires Mod for Minecraft 1.16.4
Of course, these monsters will lead a path of fire, so you better stock up on water to extinguish the fire. In large numbers, these mobs are extremely dangerous and can burn your buildings.
Download Link: Wildfires-Mod-1.16.4