Cheapest priced copy (Foundations): $0.59 at Card Kingdom, near mint, their price list as of .
Marauding Blight-Priest 
Creature — Vampire Cleric · 3/2 · Common · Foundations · #178
Whenever you gain life, each opponent loses 1 life.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
3 printings · $0.49 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations | 178 | Common | $0.59 | $0.79 |
| Jumpstart 2022 | 439 | Common | $0.59 | — |
| Zendikar Rising | 112 | Common | $0.59 | $0.49 |
4 rulings from Wizards of the Coast
- 8 November 2024Marauding Blight-Priest's ability triggers just once for each life-gaining event, whether it's 1 life from Dazzling Angel or 4 life from Apothecary Stomper.
- 8 November 2024If you gain an amount of life "for each" of something or "equal to the number" of something, that life is gained as one event and Marauding Blight-Priest's ability will trigger only once.
- 8 November 2024In a Two-Headed Giant game, life gained by your teammate won't cause Marauding Blight-Priest's ability to trigger, even though it caused your team's life total to increase.
- 8 November 2024Each creature with lifelink dealing combat damage causes a separate life-gaining event. For example, if two creatures you control with lifelink deal combat damage at the same time, Marauding Blight-Priest's ability will trigger twice. However, if a single creature you control with lifelink deals combat damage to multiple creatures, players, planeswalkers, and/or battles at the same time (perhaps because it has trample or was blocked by more than one creature), the ability will trigger only once.