You should give buildings a site ability slightly beyond the area that the control, especially once they get mobile.

Their vision distance is how much area they control, so adding more sight would increase their control area, too.

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Card List

I believe that Baba Yaga's Legs is fine as it is.
It's helpful and definitely powerful spell if well used.

It's actually one of my favourite cards. Really interesting design

What is Baba Yaga, the minature game had a walking location called Baba Yaga i'm just not familar with it, is there some story associated with it?

As far as the card i think its really cool, i cant wait to get some.

Baba Yaga is legendary hag from slavic folklore. She lived in hut that had chicken legs and used big mortar (that one meant for grain grinding) as flying transport. So that card has lot of flavor behind

Exactly
She is quite famous in Europe, I believe. Mostly in Central or Eastern, I think.
Basically it is as known as Three Blind Mice in UK

One of Hellboy's short stories is based on her character, btw