Dihada's Ploy is a common Instant card from Modern Horizons 2 (MH2), collector number 193. Current market price: $0.18 (foil $0.35), TCGplayer market prices via Scryfall.
Draw two cards, then discard a card. You gain life equal to the number of cards you've discarded this turn. Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)