Valorous Stance is a uncommon Instant card from Game Night: Free-for-All (GN3), collector number 20. Current market price: $0.16, TCGplayer market prices via Scryfall.
Choose one — • Target creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.) • Destroy target creature with toughness 4 or greater.