Boughs of Doriath

Conceal - You may play this card face down as a
colourless land with hexproof that has "Turn this
card face up any time for its mana cost."
Whenever a forest comes into play under your
control, create a 1/2 Sindarin scout creature
token with vigilance and reach.
"Only in the Realm of Doriath did the Sindar come
near to match the Calaquendi of the Blessed Realm."