Multiattack

Three Rapier attacks.

Rapier

Melee Weapon Attack: +9 to hit, 5 ft., one target, 8 (1d8+4) piercing damage + 18 (4d8) necrotic.

Life Feast (Recharge 5-6)

Pulls life from hostile creatures within 30' of it that aren't Constructs or Undead. Each such creature in the area: 36 (8d8) necrotic (DC 18 Con half). Broker gains temp hp equal to the single highest amount of necrotic dealt and has advantage on attack rolls until the end of its next turn.