Dire Fleet Poisoner is a rare Creature — Human Pirate card from Rivals of Ixalan Promos (PRIX), collector number 68p. Current market price: $2.69 (foil $1.67), TCGplayer market prices via Scryfall.
Flash Deathtouch When this creature enters, target attacking Pirate you control gets +1/+1 and gains deathtouch until end of turn.