Frostsong Fae

{t}: Add {1}{w} or {1}{u} to your mana pool.
Then, if you don't control four or more
snow permanents, sacrifice Frostsong Fae.
"A very long time ago, when I was still a kid,
I had the luck to hear one of those. Her voice
was as light as the snow, as pure as ice, as wide
as this wilderness. And as fragile as a flack."
Tyr, Northscout