Cheapest priced copy (The List): $0.35 at Card Kingdom, near mint, their price list as of .
Endless Scream 
Enchantment — Aura · Common · Tempest · #132
Enchant creature
This Aura enters with X scream counters on it.
Enchanted creature gets +1/+0 for each scream counter on this Aura.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern