The black dog that appeared from Uriel's shadow was about to bite on Medusa's calf and it was already too late to call for her attention. Aware that his aim wasn't that great and he could potentially hurt his friends, he was left with no choice but to try and block the attack with his own body.
The cryptid's maw closed on Uriel's arm, leaving behind a streak of blood as his very flesh was torn apart. He fell to the floor in pain, yet the black dog was far from over and it tried to finish the job by jumping on top of him.
Thankfully, Luna noticed Uriel wasn't in his position and turned at just the right moment to bash at the dog, giving Uriel the chance to stand back up and discharge his weapon. Being so close to the cryptid, he couldn't miss and the brain of the vicious creature splattered all over the place.
It was at that very moment that the last dog started shifting in front of everyone.