Night Incarnate is a rare Creature — Elemental card from Commander 2018 (C18), collector number 17. Current market price: $0.44, TCGplayer market prices via Scryfall.
Deathtouch When this creature leaves the battlefield, all creatures get -3/-3 until end of turn. Evoke {3}{B} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)