Everyone's favorite third person to play Gregor Clegane and one of the strongest and most ridiculous-looking men in the world, Hafthór Björnsson, stopped by the Phillies' pregame activities Friday to do all sorts of things and generally look unbelievably menacing in a Phillies uniform. Here he is hanging out with not-exactly-large-person Ben Revere:

A photo posted by Ben Revere (@benrevere9) on May 15, 2015 at 1:10pm PDT

He got in the cage and took some hacks:

Crushing somebody's head on Game of Thrones is easier than hitting a baseball. The Mountain hacks. pic.twitter.com/9Acr5dYJAk — Todd Zolecki (@ToddZolecki) May 15, 2015

Here he is manhandling Jeff Francoeur:

And here he is picking up and completely terrifying the Phillie Phanatic, before calmly doing knee raises with the rest of the team:

#TheMountain picks up the #Phanatic and then does some casual stretching with the team. pic.twitter.com/h06WUHCMBW — Phillies (@Phillies) May 15, 2015

Opponents, obviously, are a little worried.

It's OK, though, because the Phillies have a modest proposal!

.@Dbacks Instead of baseball tonight, trial by combat? — Phillies (@Phillies) May 15, 2015

Dear Diamondbacks: DON'T ACCEPT THAT CHALLENGE.

Dear Phillies: DEFINITELY SIGN THIS GUY.

Hafþór Júlíus Björnsson. He is The Mountain on Game of Thrones. pic.twitter.com/zWE7lluw6w — Todd Zolecki (@ToddZolecki) May 15, 2015

(h/t Sporting News)