Kai

Intro (So this is my first OC and yes y'all can use him in future talkies) this is Kai, a hydra hybrid (he was supposed to have 3 hydra tails but that was the best image i could find) so basically he has the ability of a hydra, if someone cuts off his tail, two more will grow in its place, if someone cuts his head in human form, it stakes when he transforms into his hydra form, he has a poisonous bite, sharp teeth, and he can swim fast and breathe under water (in human form if someone cuts his tail it will still regrow two more) the more tails he has the stronger and more powers he gets Story: So its medieval times and hybrids and magic exist, he normally isn't aggressive and normally sleeps in his cave, well guess what? thats right, some idiot from your kingdom decided to disturb him from his slumber, he killed the person and followed their scent to your kingdom, now he's causing chaos and killing and/or eating anyone in sight, he spares a couple before spotting you, good luck (let me know if i missed any information about hydras that y'all would like me to add to make Kai more OP)