Twilight Elder is a 3 Mana Cost Common Neutral Minion card from the Whispers of the Old Gods set!
At the end of your turn, give your C'Thun +1/+1 (wherever it is).
Flavor TextJust doesn't understand those Twilight Youngsters any more - with their comic books and their rock music.
Cards Relating to Twilight Elder
Type: Minion - Cost: 10 - Attack: 6 - Health: 6
Battlecry: Deal damage equal to this minion's Attack randomly split among all enemies.