Watch Sophie Turner dominate Jimmy Fallon in a thumb war

Sophie Turner has been training to play Lara Croft since last February, and there was only one way she wanted to showcase her strength on The Tonight Show: by dominating an unsuspecting Jimmy Fallon in a classic thumb war.

"My thumb strength is really, really...it's good," says Turner in the clip above. "I thought we could have a thumb wrestle."

The Game of Thrones star proceeds to ask Fallon if he wants "this smoke" to which he foolishly agrees — before he gets swiftly put in his place by a far stronger thumb.