Cheapest priced copy (Duskmourn: House of Horror): $9.99 at Card Kingdom, near mint, their price list as of .
Screaming Nemesis 
Creature — Spirit · 3/3 · Mythic · Duskmourn: House of Horror Promos · #157p
Haste
Whenever this creature is dealt damage, it deals that much damage to any other target. If a player is dealt damage this way, they can't gain life for the rest of the game.
Legal inCommanderBrawlPioneerModernLegacyVintage
Banned inStandard
Not legal inPauper
4 printings · $9.99 to $19.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duskmourn: House of Horror | 157 | Mythic | $9.99 | $13.99 |
| Duskmourn: House of Horror | 348 | Mythic | $11.99 | $19.99 |
| Duskmourn: House of Horror Promos | 157p | Mythic | $11.99 | $13.99 |
| Duskmourn: House of Horror Promos | 157s | Mythic | — | $17.99Out of stock |
5 rulings from Wizards of the Coast
- 20 September 2024If an effect says to set a player's life total to a number that's higher than their current life total while they're affected by Screaming Nemesis's last ability, their life total won't change.
- 20 September 2024Spells and abilities that cause a player affected by Screaming Nemesis's last ability to gain life still resolve. That player won't gain life, but any other effects of that spell or ability will happen.
- 20 September 2024Once Screaming Nemesis's last ability causes it to deal damage to a player, that player won't be able to gain life for the rest of the game. It doesn't matter if Screaming Nemesis remains on the battlefield or not.
- 20 September 2024If lethal damage is dealt to Screaming Nemesis, its last ability still triggers.
- 20 September 2024If Screaming Nemesis is dealt damage by multiple sources at once, such as by two creatures blocking it, its last ability triggers once and one target is dealt that much damage.