When Totaic and Luso began to fight, they didn't try to hold back. Despite Totaic's usually calm nature, he was the first to attack the enemies. Each of his punches sent a shockwave around the enemies' bodies that burned a good part of their bodies and fur.
Some enemies fell just by that, by some others managed to strike back, and while Billy felt some stings in his body, the wounded enemies managed to recover a little. Billy soon found the skill that they had, which helped them with that… it was truly way different than anything he had seen thus far, but it made sense since they were aliens from another planet. It was only natural that they could develop things that he couldn't understand.
Bloodthirsty: a trait of the werewolves and some monsters that grant them the ability to heal themselves by causing damage.