Cheapest priced copy (Core Set 2021): $0.49 at Card Kingdom, near mint, their price list as of .
Niambi, Esteemed Speaker 
Legendary Creature — Human Cleric · 2/1 · Rare · Core Set 2021 · #379
Flash
When Niambi enters, you may return another target creature you control to its owner's hand. If you do, you gain life equal to that creature's mana value.
{1}{W}{U}, {T}, Discard a legendary card: Draw two cards.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.49 to $0.69 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Core Set 2021 | 222 | Rare | $0.49 | $0.49 |
| Core Set 2021 | 379 | Rare | $0.49 | $0.49 |
| Core Set 2021 Promos | 222p | Rare | $0.49 | $0.49 |
| Core Set 2021 Promos | 222s | Rare | — | $0.69 |
2 rulings from Wizards of the Coast
- 23 June 2020If the target creature is an illegal target by the time Niambi's triggered ability tries to resolve, the ability won't resolve. You won't return the card from the zone it moved to or gain any life.
- 23 June 2020If a creature on the battlefield has {X} in its mana cost, X is considered to be 0.