Cheapest priced copy (Gatecrash): $0.35 at Card Kingdom, near mint, their price list as of .
Predator's Rapport 
Instant · Common · Gatecrash · #129
Choose target creature you control. You gain life equal to that creature's power plus its toughness.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Gatecrash | 129 | Common | $0.35 | $0.79 |
One ruling from Wizards of the Coast
- 24 January 2013Use the creature’s power and toughness when Predator’s Rapport resolves to determine how much life you gain.