Cheapest priced copy (The List): $2.49 at Card Kingdom, near mint, their price list as of .
Eater of Days 
Artifact Creature — Leviathan · 9/8 · Rare · Darksteel · #120
Flying, trample
When this creature enters, you skip your next two turns.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper