Eldritch Immunity is a rare Kindred Instant — Eldrazi card from Modern Horizons 3 Commander (M3C), collector number 33. Current market price: $10.11, TCGplayer market prices via Scryfall.
Target creature you control gains protection from each color until end of turn. Overload {4}{C} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")