The Archfey of Briarwall

First strike & wither.
Whenever you play a snow land or when 1 or
more snow permanents go the graveyard from
anywhere, you create a 2/2 red & green satyr
creature token with haste.
Reborn from her heart seed, watered by blood from the
elder dragons Ashra & Freigga, Arethusa now protects
the base of Yggdrasill, as a new archfey, from all that
intend it harm.