Psychomancer is a uncommon Artifact Creature — Necron Wizard card from Warhammer 40,000 Commander (40K), collector number 51. Current market price: $1.22, TCGplayer market prices via Scryfall.
Flying Harbinger of Despair — Whenever this creature or another nontoken artifact you control is put into a graveyard from the battlefield or is put into exile from the battlefield, target opponent loses 1 life and you gain 1 life.