Cheapest priced copy (Onslaught): $0.35 at Card Kingdom, near mint, their price list as of .
Withering Hex 
Enchantment — Aura · Uncommon · Onslaught · #181
Enchant creature
Whenever a player cycles a card, put a plague counter on this Aura.
Enchanted creature gets -1/-1 for each plague counter on this Aura.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Onslaught | 181 | Uncommon | $0.35 | $0.49 |