Cheapest priced copy (Mirage): $0.35 at Card Kingdom, near mint, their price list as of .
Aleatory 
Instant · Uncommon · Mirage · #155
Cast this spell only during combat after blockers are declared.
Flip a coin. If you win the flip, target creature gets +1/+1 until end of turn.
Draw a card at the beginning of the next turn's upkeep.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.35 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mirage | 155 | Uncommon | $0.35 | — |
2 rulings from Wizards of the Coast
- 4 October 2004You pick the target on announcement and flip the coin on resolution.
- 20 September 2013If a turn has multiple combat phases, this spell can be cast during any of them as long as it’s after the beginning of that phase’s Declare Blockers Step.