Blood Golem

Blood Golems are a type of Golem, often summoned by Necromancers.

Lore
Utilizing a small quantity of their own blood, a Necromancer is able to give life to a creature neither living nor dead, yet formed of human tissue. This homunculus gains nourishment from the fresh blood of its slain enemies, from which it replenishes its strength. Tied to the Necromancer through their own blood, the Blood Golem is able to share this stolen life force with his master. Unfortunately, the link flows both ways, and any damage taken by the Golem is also transmitted to the caster.

Diablo II
Blood Golems can be summoned by s in Diablo II.

Diablo Immortal
Blood Golems appear as enemies in Diablo Immortal.

Diablo III
Golems appear in Diablo III via the Command Golem skill. Similar creatures called Flesh Golems also appear as monsters.