The Valkyrie Warrior is a winged, spear-wielding guardian of the Valkyrie Queen.
Behavior
The Valkyrie Warrior is neutral until attacked, then hostile: it dodges with hops, strikes with its spear, and performs a charging lunge. It can be summoned as a tamed ally with the Valkyrie Horn.
When you beat it in combat, the Warrior does not die outright: once its combat health is depleted it drops to its knees in a defeated, kneeling state, and you choose its fate.
Spare it by interacting with the kneeling Warrior: this counts as an honorable victory, raises your Valkyrie standing, and the Warrior leaves behind a Victory Medal (dropped only once per Valkyrie).
Kill it by striking the kneeling Warrior instead: this slays it, lowers your Valkyrie standing, yields no medal, and provokes any nearby Valkyries. Drops feathers and either gold or damaged Valkyrie armor.
Spawning
Valkyrie Warriors guard Valkyrie Settlements, but they also roam the Aether as members of Valkyrie Patrols, roving hostile-mode groups that spawn near players once your Valkyrie standing turns negative.
When killed the Valkyrie Warrior drops feathers and either gold or damaged Valkyrie armor, plus a rare chance to drop a key: a Bronze Key, Silver Key, or Golden Key. It leaves behind a Victory Medal when spared rather than slain.