Cheapest priced copy (Foundations Jumpstart): $0.59 at Card Kingdom, near mint, their price list as of .
Tough Cookie 
Artifact Creature — Food Golem · 2/2 · Uncommon · Foundations Jumpstart · #731
When this creature enters, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")
{2}{G}: Until end of turn, target noncreature artifact you control becomes a 4/4 artifact creature.
{2}, {T}, Sacrifice this creature: You gain 3 life.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
2 printings · $0.59 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations Jumpstart | 731 | Uncommon | $0.59 | — |
| Wilds of Eldraine | 193 | Uncommon | $0.59 | $0.79 |
4 rulings from Wizards of the Coast
- 1 September 2023As Tough Cookie's second ability resolves, the target permanent keeps any other types and subtypes it had before it became an artifact creature.
- 8 November 2024Whatever you do, don't eat the delicious cards.
- 8 November 2024Food is an artifact type. Even though it appears on some creatures, it's never a creature type.
- 8 November 2024You can't sacrifice a Food to pay multiple costs. For example, you can't sacrifice a Food token to activate its own ability and also to activate Maraleaf Rider's ability.