Rapid Rescue is a common Instant card from Marvel Super Heroes (MSH), collector number 181. Current market price: $0.20 (foil $0.24), TCGplayer market prices via Scryfall.
Mill two cards. You may put a permanent card from among the milled cards into your hand. You gain 2 life. (To mill two cards, put the top two cards of your library into your graveyard.)