I am not 100% sure what you mean but I think you are referring to the 1st regen glitch that one or more of the troop builds have. This glitch I believe means you get 3 hits on your 1st regen however after that the regen is normal so it's only really worth it for those who are extremely dedicated and willing to skim from 0 troops. I am not sure on which buildings or levels are required however that's a brief breakdown from what I know.
Troop and spy glitch work for ll hf abyss and New lands however if i understand right you can use any combination but they dont fully stack there is a cap on extra hits this is why most people have their level 1 buildings on ll and hf only spy buildings and balanced troop buildings are the ones you need to build
Hey, I know about the HF one. The new lands apparently have one as well and wanted to know if anyone know about it. I've been hearing a lot about this glitch that's why I am asking here.