Cheapest priced copy (Marvel Super Heroes Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Heart-Shaped Herb 
Artifact · Rare · Marvel Super Heroes Commander · #435
If a source an opponent controls would deal damage to you, prevent 1 of that damage.
{2}, {T}, Sacrifice this artifact: You may sacrifice a creature. If you do, return that card to the battlefield under its owner's control with three +1/+1 counters on it and you become the monarch.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 to $1.29 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Marvel Super Heroes Commander | 105 | Rare | $0.49 | $0.49 |
| Marvel Super Heroes Commander | 435 | Rare | $1.29 | — |