C116 Dementor

"You mean this device can control people using their heartbeats?"

"Yes, from what I understand, your adversary could be a dementor, a vile and fearsome creature. Unlike the beasts we're familiar with, I can't pinpoint its original form. Rumor has it that they're born from negative emotions, or perhaps they're monsters from another realm. Regardless, they're all exceedingly bizarre and dangerous