Hollow Knight (5e Creature)
From D&D Wiki
Medium humanoid, chaotic evil
Spear. Melee or Ranged Weapon Attack: +5 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 6 (1d6 + 3) piercing damage, or 7 (1d8 + 3) piercing damage if used with two hands to make a melee attack.
The knights who once, alongside the infantry, held the Cardinal Tower against the Giants, and fought valiantly until the end. They still defend the tower with their lives, despite their hollowed state.