X, Mystery Racer is a rare Legendary Creature — Human Spy card from Magic: The Gathering (Unknown Event, UNK).
Rare
Unknown Event (UNK)
{3}{U}{B}
Power / Toughness
5 / 5
Mana Value
5
Colors
B
U
Card Text
When X enters, you may put it into target opponent's hand. If you do, as long as it remains in their hand, that player can't cast X and they play with their hand revealed.
During your turn while X is in an opponent's hand, you may activate abilities of nonland permanents opponents control. If you activate the crew or saddle ability of a permanent this way, gain control of it until end of turn. Untap it. It gains haste until end of turn.
