The latest of Conan O’Brien’s “Clueless Gamer” segments is all about an epic confrontation between two Game of Thrones actors whose characters hate each other.

Lena Headey, who plays the vindictive queen Cersei, squared off against Peter Dinklage, who plays the brother she hates, Tyrion, in the newly released shooter Overwatch. It meant that Dinklage controlled a giant talking gorilla that took on Headey’s arrow-firing Japanese warrior.

Meanwhile, Conan enjoyed the competition like a true ruler of Westeros, sitting on a version of the Iron Throne that was the truest of king’s chairs, as it was also a toilet. It wasn’t as high-quality as the replica Conan head on a pike that was presented to the winner of the competition, however—it was even presented by a George R.R. Martin look-alike.