Turgon, the Hidden-King

Concealed- You may play this card face-down as a colorless land with hexproof and "{t}: {1}." Turn
it face up any time for its mana cost.
Elf creatures you control get +1/+1 and have vigilance.
When you turn Turgon, the Hidden-King face up,
create X 1/1 white and blue elf creature tokens
where X is the number of face down cards you
control.