The only ranged unit in the Snowlion Brigade, the Snowlion longbowman competently wields a Long Composite Bow with Bodkin Arrows or Jatu Arrows. As for melee, the longbowman will switch to a two-handed War Cleaver. They are good archers and mediocre on melee, they can stand a fight, but its not recommended letting them take the focus, as they lack shields and they provide better value when used as archers.
This troop can't be obtained through upgrades nor can be upgraded. They can be rescued from prisoner stacks, though.