Ruin Raider is a rare Creature — Orc Pirate card from Ixalan Promos (PXLN), collector number 118p. Current market price: $0.50 (foil $1.51), TCGplayer market prices via Scryfall.
Raid — At the beginning of your end step, if you attacked this turn, reveal the top card of your library and put that card into your hand. You lose life equal to the card's mana value.