Cruor's Embrace is a Unique Gloves in Diablo IV Season 15. It drops from Lord Zir.
Unique power
Casting Blood Surge picks up 4 Blood Orbs around you to expel smaller blood novas, dealing [80 - 100]% of normal damage.
Affixes
+1-3 to Blood Surge
Where it drops
Lord Zir (Lair Boss) per one guide
Random world drop / any Lair Boss (one guide: 'drops at any Difficulty Tier, increased drop rate per Torment tier'); 3.2.1: all Uniques drop from level 1 in any Difficulty; targetable via Horadric Cube reroll