Varis Egen is the captain of the guard in the Eyrie.
When Tyrion Lannister demands a trial by combat, Lysa Arryn chooses Vardis Egen as her champion. At first Vardis is sceptical about fighting a dwarf, thinking it shamefull to slay a man half his size, however, Tyrion also demands his own champion, whom Vardis says he will gladly fight.
It is Bronn who in the end volunteers to be Tyrion's champion. Campared to Vardis, Bronn uses little armor and no shield, and is therefore more agile. The two champions have a long fight, but in the end Bronn forces Vardis to his knees, stabs him in the neck and kicks him out the Moon Door.