Warning: Spoilers ahead for Uncanny X-Men #9 Marvel just unveiled a terrifying upgrade to one of the X-Men's newest Sentinels, combining one of the X-Men’s most recognizable ene ...

Written by Gail Simone, with art by Andrei Bressan ... (Image Source: Marvel / Andrei Bressan) Dubbed the Wolfpack, these Sentinels are meant to have the loyalty of dogs, as well as their tracking ...