Subtypes, like Human and Equipment, and supertypes, like snow and legendary, aren't card types
Like most Magic: The Gathering cards, the value of Halsin, Emerald Archdruid depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Commander Legends: Battle for Baldur's Gate)
:) The card itself was re-released in the US, so it's not hard to find
Its being warped by the eldritch influence on Innistrad, the plane which this card comes from, and its already taken a chunk out of the poor persons finger
While you might want to cast me out for that pun, you might want to sit and hear what I have to say first
A typical Feather deck is full of instants and creatures that want to be buffed with them, which is exactly the kind of fresh deck that Boros needs