Avengers: Infinity War could possibly introduce a new villain besides Thanos.
Thanos is on a quest to get all the Infinity Stones.
So far, he's been touted as the big bad guy for Infinity War.
But rumor has it a new tie-in mug features a previously undisclosed bad guy.
Avengers: Infinity War is shrouded in secrecy.
Fans will have to wait until the film hits theaters before the bad guy is revealed.