MAC Ride My Slay is a cool burgundy with a matte finish that is limited edition and retails for $17.00. In comparison, NARS Indes Galantes (Right) is a warm burgundy with a matte finish that is discontinued and retails for $25.00.
NARS Indes Galantes (Right) is 90% similar — it is more shimmery, more pigmented, warmer.