The veins of magical ores running through the mountainside caves have given rise to these unnatural and ravenous beasts, which is a bummer, because regular bats were already pretty creepy to begin with. Their serrated teeth ensure their victims produce ample blood flow, and their ability to sense incoming projectiles makes fighting them at long range no easy task. You may, however, gain the upper hand them with the same tool used to vanquish any darkness: FIRE.