Just keep cutting heads until the mass of the hydra-type beast is so big that the ground will collapse under her body and traps her, maybe even so big that she will collapse into a spherical shape under her own weight. Only a helpless heavy mass of moving flesh! The birth of the hydra moon!
Just keep cutting heads until the mass of the hydra-type beast is so big that the ground will collapse under her body and traps her, maybe even so big that she will collapse into a spherical shape under her own weight. Only a helpless heavy mass of moving flesh! The birth of the hydra moon!
trap the hydra. chop off the heads, burn them.
use the heads as fuel in a power plant.
You now have the industrial revolution built on top of infinite power generation