Cheapest priced copy (Duskmourn: House of Horror): $0.35 at Card Kingdom, near mint, their price list as of .
Popular Egotist 
Creature — Human Rogue · 3/2 · Uncommon · Duskmourn: House of Horror · #114
{1}{B}, Sacrifice another creature or enchantment: This creature gains indestructible until end of turn. Tap it. (Damage and effects that say "destroy" don't destroy it.)
Whenever you sacrifice a permanent, target opponent loses 1 life and you gain 1 life.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duskmourn: House of Horror | 114 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 20 September 2024If you sacrifice Popular Egotist, its last ability will trigger. If you sacrifice other permanents at the same time, its last ability will trigger for each of those permanents as well.
- 20 September 2024If you sacrifice a permanent as part of casting a spell or activating an ability, Popular Egotist's last ability will resolve before that spell or ability. It will resolve even if that spell or ability is countered.