Minecraft Dungeons:Skeleton Vanguard
In default difficulty, they only spawn within the Desert Temple and the Lower Temple. They spawn with a glaive, and a unique helmet and shield. They are mainly seen serving The Nameless One, who summons waves of Skeleton Vanguards in his boss fight.
Skeleton Vanguards immediately chase players once seen or alerted by another mob. When close enough, they stab the player with their blades. The shield serves as extra health as it absorbs the first attack. To damage the Skeleton Vanguard, the player must break the shield first.
A Skeleton Vanguard as seen in the Minecraft Dungeons menu.