Requires good rng with weapons/recipes to actually reach any level of broken, I've had more issues with the Reaper having seemingly endless regen and shield potential on the 1st or 2nd round onward, and can't figure out HOW, they never seem to have any healing items beyond that mushroom thing.
Unsure, yet to actually play as the Reaper, but just looking at the mushroom, it's the base item that comes in their pack, and nothing in the description seems to imply anything regarding massive recovery capability. Though, if that's the case, that's a broken item to have popping right at round 1. xD