Cheapest priced copy (Innistrad): $0.35 at Card Kingdom, near mint, their price list as of .
Wreath of Geists 
Enchantment — Aura · Uncommon · Innistrad · #211
Enchant creature
Enchanted creature gets +X/+X, where X is the number of creature cards in your graveyard.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad | 211 | Uncommon | $0.35 | $0.79 |
One ruling from Wizards of the Coast
- 22 September 2011The value of X is constantly updated as creature cards are put into or removed from your graveyard.