Cheapest priced copy (Streets of New Capenna Promos): $4.99 at Card Kingdom, near mint, their price list as of .
Angel of Suffering 
Creature — Nightmare Angel · 5/3 · Mythic · Streets of New Capenna · #416
Flying
If damage would be dealt to you, prevent that damage and mill twice that many cards.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $4.99 to $11.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Streets of New Capenna Promos | 67p | Mythic | $4.99 | $10.99 |
| Streets of New Capenna Promos | 67s | Mythic | — | $11.99 |
| Streets of New Capenna | 67 | Mythic | $4.99 | $5.99 |
| Streets of New Capenna | 416 | Mythic | $6.49 | $9.99 |
3 rulings from Wizards of the Coast
- 29 April 2022Damage that would be dealt to you will be prevented even if you can't mill twice that many cards.
- 29 April 2022If you would mill more cards than are in your library, you mill all cards in your library.
- 29 April 2022If the damage can't be prevented for some reason, you'll still mill twice that many cards.