By Nolan Feeney
February 4, 2015

Hafthór Björnsson—otherwise known as “The Mountain” from Game of Thrones—is living up to his nickname. He won the World’s Strongest Viking competition over the weekend, carrying a 30-foot, 1,433-pound log five steps, breaking a 1,000-year-old record in the process, according to IronMind.

Björnsson took to Instagram to celebrate his victory and explain the origins of the challenge: “The legend of the Icelander Orm Storulfsson says that he walked three steps with this MONSTER WOODEN LOG which weighs over 600kg’s/1320lbs! It took 50 mere mortals to help him placing it on his back! After he took his third step his back broke under the enormous pressure and he was never the same after that!”

With this victory under his belt, Björnsson says he’s setting his sights on the World’s Strongest Man competition. And much like a character in George R.R. Martin’s fantasy universe, Björnsson ended his Instagram speech with an epic war cry: “NOTHING CAN STOP ME!! NOTHING CAN BREAK ME!!”

Read next: The World’s Largest Shoe and 10 Other Odd Guinness World Records

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Write to Nolan Feeney at nolan.feeney@time.com.

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