Boreal Wood Sword

Every wood type gets its own sword and they all behave the same, so the boreal one is a snow biome convenience rather than an upgrade. If you spawned near tundra, this is what you swing until you have ore worth melting.

One detail on the sprite is worth a look: the hilt has no crossguard at all, unlike the plain wooden version. That shape points at Viking blades, which fits the frozen half of the world it comes from.