Cheapest priced copy (Odyssey): $0.35 at Card Kingdom, near mint, their price list as of .
Liquid Fire 
Sorcery · Uncommon · Odyssey · #201
As an additional cost to cast this spell, choose a number between 0 and 5.
Liquid Fire deals X damage to target creature and 5 minus X damage to that creature's controller, where X is the chosen number.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.35 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Odyssey | 201 | Uncommon | $0.35 | $1.99 |
One ruling from Wizards of the Coast
- 1 May 2009You choose the number as you cast the spell. If you choose 0, the creature’s controller will be dealt 5 damage. If you choose 5, that player will not be dealt any damage.