Deathrattle: Put a Secret from your deck into the battlefield.
His mother wanted him to be a mage or a warlock, but noooooooo, he had to go and be a scientist like his father.
Deathrattle - Does something when it dies.
Secret - Hidden until a specific action occurs on your opponent's turn.
How to Unlock Mad Scientist
Unlocked in The Construct Quarter, in the Naxxramas adventure.
How to Unlock Golden Mad Scientist
Crafting unlocked in The Construct Quarter, in the Naxxramas adventure.
Mad Scientist Sounds