Cheapest priced copy (Jumpstart): $0.35 at Card Kingdom, near mint, their price list as of .
Blood Host 
Creature — Vampire · 3/3 · Uncommon · Magic 2015 · #87
{1}{B}, Sacrifice another creature: Put a +1/+1 counter on this creature and you gain 2 life.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Jumpstart | 208 | Uncommon | $0.35 | — |
| Magic 2015 | 87 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 18 July 2014If Blood Host isn’t on the battlefield when its ability resolves, you won’t put a +1/+1 counter on it but you’ll still gain 2 life.