grinder

so spawners aren’t consistent at all. Is there a formula or guide on how to calculate the height required for a 1 hit kill? why does the height change seemingly randomly?

Mob grinders are actually (unsurprisingly), very very useful on skyblock, especially when you're clad with bare leather armor and given the grueling task of clearing out an island's spawners and mobs. Last time I tried that, it didn't go well... Oww... 30 full minutes of pain and suffering...