Cheapest priced copy (Judgment): $4.99 at Card Kingdom, near mint, their price list as of .
Soulcatchers' Aerie 
Enchantment · Uncommon · Judgment · #25
Whenever a Bird is put into your graveyard from the battlefield, put a feather counter on this enchantment.
Bird creatures get +1/+1 for each feather counter on this enchantment.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper