Cheapest priced copy (The List): $3.49 at Card Kingdom, foil, near mint, their price list as of .
Fiery Gambit 
Sorcery · Rare · Mirrodin · #90
Flip a coin until you lose a flip or choose to stop flipping. If you lose a flip, Fiery Gambit has no effect. If you win one or more flips, Fiery Gambit deals 3 damage to target creature. If you win two or more flips, Fiery Gambit deals 6 damage to each opponent. If you win three or more flips, draw nine cards and untap all lands you control.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $3.49 to $5.99 at Card Kingdom
4 rulings from Wizards of the Coast
- 1 December 2004You must choose a target creature when you cast Fiery Gambit. If that target isn’t legal on resolution, Fiery Gambit has no effect and you don’t even flip a coin.
- 1 December 2004You can flip any number of coins (you can even flip more than three), but Fiery Gambit has no effect if you lose any of the flips. You can’t continue flipping if you lose a flip.
- 1 December 2004If you win three flips, Fiery Gambit deals 3 damage to the target creature and 6 damage to each opponent, and you draw nine cards and untap all lands you control.
- 1 December 2004After each flip, you choose whether to continue flipping.