Cheapest priced copy (Dissension): $0.39 at Card Kingdom, near mint, their price list as of .
Entropic Eidolon 
Creature — Spirit · 2/2 · Common · Dissension · #45
{B}, Sacrifice this creature: Target player loses 1 life and you gain 1 life.
Whenever you cast a multicolored spell, you may return this card from your graveyard to your hand.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.39 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dissension | 45 | Common | $0.39 | $1.49 |