Karmic Guide is a rare Creature — Angel Spirit card from Secret Lair Drop (SLD), collector number 281. Current market price: $5.80 (foil $5.44), TCGplayer market prices via Scryfall.
Flying, protection from black Echo {3}{W}{W} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.) When this creature enters, return target creature card from your graveyard to the battlefield.