Cheapest priced copy (Commander 2015): $0.35 at Card Kingdom, near mint, their price list as of .
Blood Bairn 
Creature — Vampire · 2/2 · Common · Commander 2015 · #117
Sacrifice another creature: This creature gets +2/+2 until end of turn.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2015 | 117 | Common | $0.35 | — |
| Commander Anthology | 49 | Common | $0.35 | — |
| Magic 2014 | 87 | Common | $0.35 | $0.49 |