Claws of hades (5e Equipment)
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Weapon (Claws), artifact (Requires attunement)
Once used by it's name sake the Greek god Hades, these claws are not merely for the summoning of souls in battle. These claws are said to rip out the souls of all creatures.
When used, the claws can heal the user from a 1/4 of the target's maximum hit points (Only works when you succeed the strength vs constitution contest, and only works when both claws are on the target.) For one charge a day, you can slam the claws into the ground and summon a soul of a creature you have already killed to fight for you. The soul summoned this way goes away after 1d4 rounds.