Speed Demon

History and Changes
Designed as the first unit with the "Summon: This attacks." mechanic, Speed Demon had an important pruprose when it got printed: being a strong card to foster the birth of the very first aggressive and fast decks in the game. Speed Demon really gave those decks the chance to shine, so that the card had to be necessarily changed from its original 3 mana 3/3 form to its current version five weeks after its approval.

Fun Facts

 * Speed Demon is also the name of a famous Micheal Jackson single, but it hasn't been confirmed as an intentional reference by the card designer yet.
 * The displayed demon on the artwork recalls the aspect of a bipedal Great Dane.
 * The Speed Demon is also displayed as one of the charcters in the artwork of Rallying Shout.