Vorthos's Challenge

Name a creature type. Starting with the player
on your left, each player names a legendary creature card with that creature type. Repeat this process until a player gives an incorrect response or fails to respond within 10 seconds.
Vorthos's Challenge deals X damage to the player who gave an incorrect response.
"Dragon? Well there's Numot, Silumgar, Chromium, Atarka, Darigaaz, Kokusho, Treva, Karrthus..."