SCP - 173

You may cast SCP - 173 from your hand without paying its mana cost if your opponent is not looking at the board.
SCP - 173 Can Attack at any time
SCP - 173 Can't attack or defend if your opponent is looking at SCP - 173
SCP - 173 Has Unlockable if your opponent is not looking at SCP - 173
"ACHOO!!" D-17AD7 Final Words