Cheapest priced copy (Innistrad: Double Feature): $0.35 at Card Kingdom, near mint, their price list as of .
Voldaren Ambusher 
Creature — Vampire Archer · 2/2 · Uncommon · Innistrad: Midnight Hunt · #166
When this creature enters, if an opponent lost life this turn, it deals X damage to up to one target creature or planeswalker, where X is the number of Vampires you control.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad: Double Feature | 166 | Uncommon | $0.35 | $0.79 |
| Innistrad Remastered | 180 | Uncommon | $0.35 | $0.49 |
| Foundations Jumpstart | 611 | Uncommon | $0.35 | — |
| Innistrad: Midnight Hunt | 166 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 24 September 2021Voldaren Ambusher's ability counts the number of Vampires you control as it resolves. If something happens in response such that you don't control any Vampires when it resolves, Voldaren Ambusher won't deal damage to the target creature or planeswalker.
- 24 September 2021Voldaren Ambusher's ability cares whether an opponent lost life this turn, not how their life total changed. For example, an opponent who gained 2 life and lost 1 life in the same turn still lost life.