Cheapest priced copy (Dark Ascension): $0.35 at Card Kingdom, near mint, their price list as of .
Forge Devil 
Creature — Devil · 1/1 · Common · Dark Ascension · #91
When this creature enters, it deals 1 damage to target creature and 1 damage to you.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
4 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dark Ascension | 91 | Common | $0.35 | $0.49 |
| Jumpstart | 322 | Common | $0.35 | — |
| Magic 2015 | 140 | Common | $0.35 | $0.49 |
| The List | M15-140 | Common | $0.35 | — |
One ruling from Wizards of the Coast
- 18 July 2014Forge Devil’s ability is mandatory. If it’s the only creature on the battlefield, you’ll have to choose it as the target and have it deal 1 damage to itself and 1 damage to you.