Eikthyr is a boss creature in Valheim and one of the first major foes players face. It has 500 health and uses powerful attacks based on its antlers and charging stomps, dealing pierce damage with Antler strikes and lightning damage with its Charge and Stomp. As a large stag-like enemy, Eikthyr serves as an early progression challenge and a key combat encounter in the game’s biome and boss system.