Valorous Stance (MSC) from Marvel Super Heroes Commander, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Tyler Walpole
• Card Text:
  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.