Cheapest priced copy (Guildpact): $0.99 at Card Kingdom, near mint, their price list as of .
Souls of the Faultless 
Creature — Spirit · 0/4 · Uncommon · Guildpact · #131
Defender (This creature can't attack.)
Whenever this creature is dealt combat damage, you gain that much life and attacking player loses that much life.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.99 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Guildpact | 131 | Uncommon | $0.99 | $2.99 |
2 rulings from Wizards of the Coast
- 1 February 2006If Souls of the Faultless is dealt combat damage in a Two-Headed Giant game, you may choose either member of the attacking team as the player who will lose life. The player you choose doesn't have to be the controller of a creature that dealt damage to Souls of the Faultless.
- 1 February 2006If Souls of the Faultless somehow attacks and is dealt combat damage, you will both gain and lose life when its ability resolves.