Cheapest priced copy (Teenage Mutant Ninja Turtles Eternal): $19.99 at Card Kingdom, foil, near mint, their price list as of .
Food Chain 
Enchantment · Mythic · Secret Lair Drop · #1369
Exile a creature you control: Add X mana of any one color, where X is 1 plus the exiled creature's mana value. Spend this mana only to cast creature spells.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
7 printings · $19.99 to $649.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters 2022 | 147 | Mythic | $27.99 | $44.99 |
| Double Masters 2022 | 460 | Mythic | — | — |
| Judge Gift Cards 2018 | 8 | Rare | — | $109.99 |
| Mercadian Masques | 246 | Rare | $34.99 | $649.99 |
| The List | MMQ-246 | Rare | $32.99 | — |
| Secret Lair Drop | 1369 | Mythic | $42.99 | $39.99 |
| Teenage Mutant Ninja Turtles Eternal | 133 | Mythic | — | $19.99 |
2 rulings from Wizards of the Coast
- 4 October 2004This mana may not be used to pay costs imposed after the spell is initially cast.
- 4 October 2004This mana may be used on additional costs to cast the spell, such as Kicker.