Cheapest priced copy (Duskmourn: House of Horror): $0.69 at Card Kingdom, near mint, their price list as of .
Violent Urge 
Instant · Uncommon · Duskmourn: House of Horror · #164
Target creature gets +1/+0 and gains first strike until end of turn.
Delirium — If there are four or more card types among cards in your graveyard, that creature gains double strike until end of turn.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
1 printing · $0.49 to $0.69 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duskmourn: House of Horror | 164 | Uncommon | $0.69 | $0.49 |