A foil Giant Growth from the Magic 2011 (M11) set provides the classic instant that grants +3/+3 to a creature for one green mana, presented in a collectible foil finish. Appearing with Unknown rarity, it occupies a common play-and-collect niche rather than a premium rarity tier. The card's current market value sits at $0.04, reflecting frequent availability and modest demand. Collectors use condition and foil quality to differentiate copies when tracking value.