Cheapest priced copy (Battle for Zendikar): $0.35 at Card Kingdom, near mint, their price list as of .
Bloodbond Vampire 
Creature — Vampire Shaman Ally · 3/3 · Uncommon · Battle for Zendikar · #104
Whenever you gain life, put a +1/+1 counter on this creature.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.35 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Battle for Zendikar | 104 | Uncommon | $0.35 | $2.49 |
| Explorers of Ixalan | 15 | Uncommon | $0.35 | — |
| Jumpstart 2022 | 380 | Uncommon | $0.35 | — |
| Jumpstart | 209 | Uncommon | $0.35 | — |
3 rulings from Wizards of the Coast
- 25 August 2015The ability triggers just once for each life-gaining event, whether it’s 1 life from Drana’s Emissary or 7 life from Nissa’s Renewal.
- 25 August 2015In a Two-Headed Giant game, life gained by your teammate won’t cause the ability to trigger, even though it causes your team’s life total to increase.
- 25 August 2015A creature with lifelink dealing combat damage is a single life-gaining event. For example, if two creatures you control with lifelink deal combat damage at the same time, the ability will trigger twice. However, if a single creature with lifelink deals combat damage to multiple creatures, players, and/or planeswalkers at the same time (perhaps because it has trample or was blocked by more than one creature), the ability will trigger only once.