Cheapest priced copy (Dominaria United): $0.35 at Card Kingdom, near mint, their price list as of .
Wingmantle Chaplain 
Creature — Human Cleric · 0/3 · Uncommon · Dominaria United · #39
Defender
When this creature enters, create a 1/1 white Bird creature token with flying for each creature with defender you control.
Whenever another creature you control with defender enters, create a 1/1 white Bird creature token with flying.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dominaria United | 39 | Uncommon | $0.35 | $0.49 |
| Tarkir: Dragonstorm Commander | 141 | Uncommon | $0.35 | — |
2 rulings from Wizards of the Coast
- 9 September 2022If Wingmantle Chaplain enters the battlefield under your control at the same time as other creatures with defender, the second ability will trigger once and the last ability will trigger once for each of those other creatures.
- 9 September 2022Count the number of creatures with defender you control as the second ability resolves to determine how many Bird tokens you create. If Wingmantle Chaplain’s still under your control at that time, it will count itself.